Rear Brake/Axle Groan...

[f5fstop]

...upon heavy braking.

This is being rephrased....
The problem will be worked on Today, on my vehicle.
Appears to happen only with warm brakes and a heavy stop. Light stopping does not seem to cause the groan.
I'll keep you guys/gals informed.

[fourfourto]

:clapping: Thanks F5.
Sounds like the same as mine,
funny thing this wekend on a 800 mile (total )upstate trip It was not that noticable,It could have to do with few complete stops but it wasnt as bad as last week with regular driving.

Remember I had my rotors cut and rear brakes replaced at 12K noise started again at 18K(dealer said normal) Im now at 20,000 miles.


Also Its not always a hard stop more of a consistent full stop

[Desert Dan]

I groan when in stop and go traffic too!

[Hmmm2]

:clapping: Thanks F5.
Sounds like the same as mine,
funny thing this wekend on a 800 mile (total )upstate trip It was not that noticable,It could have to do with few complete stops but it wasnt as bad as last week with regular driving.

Remember I had my rotors cut and rear brakes replaced at 12K noise started again at 18K(dealer said normal) Im now at 20,000 miles.


Also Its not always a hard stop more of a consistent full stop
X2!! Except I'm around 16.5 K with mine right now. My groan just came back .. intermittently. Now I come to a rolling stop .. I'm afraid to listen to that groan again. f5fstop .. what you have described is EXACTLY as I had described it ... EXACTLY! Can't wait to hear what you find out. I'm sorry your H3 has it, too, f5fstop .. but at least I(and fourfourto) will finally know the REAL reason once you get your answer!! :clapping:

[f5fstop]

Ok, here it is and some may not like it......
Not the rear brakes, we checked them today, and all is well. Thought it might be the rear sway bar...Nope. Rear axle....nope.
Installed chassis ears*, drove around and we discovered an interesting thing; something we all know, but forget about...sound travels.
For some reason we don't know yet, when slowing down and suddenly stopping, and the trans downshifts into first, a metallic sound (sometimes a groan) is emitted from the transfer case and travels to the side, making it sound like the rear brakes are making a noise.
The vehicle is currently up in the air w/o a transfer case, waiting for a new one to be delivered. Once replaced, we will drive around some more to see if this is the noise.
If it was the noise, the case goes back to BW to root cause the problem...if there is a problem other than noise. This root cause will take time. In fact, it may take till next Monday to see if this solved the problem.
Now, was my noise the same as all other noises reported? Don't know, and really can't tell. I will say my noise this morning was more of a scrapping sound than a moaning sound, and that sound sure appeared to be coming from the t/case when using the chassis ears.

A regional rep has reported a groaning sound repaired on a vehicle by applying silicone lube to the stainless steel shims on the rear brake pads.

I'll keep you guys informed, but right now I have to suffer since the only vehicle available to drive was a yellow corvette convertible, and the temps are going to the 40s; so what good is it! I believe Friday I will switch it for a Crimson 2007 H2 that will be available that is in the test fleet, and they need more miles on it, plus some opinions on how it drives....:jump: (Hear that DRTFYN?????)

(*A box with a rotor switch to tune into different circuits, has a head phone, and six leads that connect to different parts of the vehicle. So you can pinpoint a noise.)

[Hmmm2]

Thanks for the update, f5fstop. Am anxiously awaiting the outcome of your transfer case test. Thanks for explaining exactly how the chassis ears are hooked up. I had suggested to a dealer service mgr (upon your suggestion to me) that he use chassis ears on my H3 to pinpoint the sound. Do you know what he said? "With that type of noise, we couldn't put a mechanic under the vehicle while driving to hear the sound you're talking about!" OMG!!!! (:giggling:) :rant:

Back to topic .. let us know as soon as you find out!! Thanks!

[f5fstop]

Thanks for the update, f5fstop. Am anxiously awaiting the outcome of your transfer case test. Thanks for explaining exactly how the chassis ears are hooked up. I had suggested to a dealer service mgr (upon your suggestion to me) that he use chassis ears on my H3 to pinpoint the sound. Do you know what he said? "With that type of noise, we couldn't put a mechanic under the vehicle while driving to hear the sound you're talking about!" OMG!!!! (:giggling:) :rant:

Back to topic .. let us know as soon as you find out!! Thanks!


Tell them that's why H3s have a high ground clearance, to allow techs to ride underneath.:fdance: That's why chassis ears were designed. Hard to have a mechanic ride around under a Corvette while checking for undercarriage noises. :jump:

[fourfourto]

If it is the tranfer case making the noise the only way a dealer would replace it would be to do the sound test.
Do all dealers have this available to them.
If yours was bad will there be a record of the fix for the dealer to see.

[Hmmm2]

But .... if the groan is coming from the transfer case, does it mean that there definitely IS a problem where it needs to be replaced? I can just hear the Service Manager telling me, "It's not a safety hazard and doesn't affect the performance of the vehicle". But, fourfourto, how does that explain the feeling in the brake pedal that I get (and you, too, I think) as the groan is occuring? Yesterday I had the radio up high and when I came to a stop, I 'felt' it in the brake pedal. :eek: SO, I turned off the radio and brought it to a similar stop a block up. Sure enough, I heard it. :mad:

[f5fstop]

What we cannot determine is that your groan and my groan are the same. My groan actually started to turn into more of a metallic sound. The main reason GM is taking mine out in the service garage is to make sure nothing it tinkered with, and the entire unit, with fluid is sent to BW for teardown by their tech in their research lap.
I never felt anything in the brake pedel, but I heard this sound only when doing a heavy braking.
I guess time will tell, as of right now, it is still sitting in the garage and waiting for a new case.

[Hmmm2]

I never felt anything in the brake pedel, but I heard this sound only when doing a heavy braking.
I don't hear mine as I roll to a stop or softly come to a stop. Mine happens (example) when I'm almost at the signal light and it suddenly turns red. I go, "WHOA! Red Light!" and hit the brakes. OR, as I'm going down hill and the light turns red at the base .. and I'm going 60-62 mph and have to hit the brakes. Just as I'm ALMOST at a complete stop from the hard brake, it groans. The problem is that you can't just drive along and brake when you have to leisurely ... you ALWAYS have the possible groan on your mind. I don't think that should be part of the H3 package, you know? (:mad:)

[fourfourto]

you ALWAYS have the possible groan on your mind


:crying: I know exactly what you mean :beerchug: :jump: :iagree: :jump:

[f5fstop]

Just picked it up with a new t/case, and the groan/metallic sound is totally gone. Had plenty of chances to test it on the way home (MI stop/go traffic) and it is quiet as a mime in a mime contest.:jump:

I'll let everyone know when I hear what the results were on the teardown of the case.

[fourfourto]

F5 will there be any record of noise being related to the transfer case that a dealer could view.
Should I ask the dealer put a mechanic ear on my 3 to see were noise is comming from.
I dont think I will be making a appontment with the dealer for a couple weeks so maybe there will be some more info by then.

Im still not sure If its related to my brakes,
I will try to get a video /sound file from my camera this weekend and post it to see if it sounds like yours.
Thanks

[f5fstop]

I would suggest the tech put some ears on the rear of the brake shield where the park brake mounts, on the axle, on the spring (possibly a loose shackle) and on the case. He can then drive and switch between the different circuits to help locate the noise.
If it is found there are more like this, chances are a bulletin will be produced. However, they have to locate more of these and if it cures the problem, then likely a bulletin will be issued.
Mine might be the only one that has this problem with the t/case. Best way for me to describe is it starts out as a moan, turns to more of a metallic sound.

[Hmmm2]

f5fstop ... yours was a moan/groan that eventually turned into a metallic sound, as in metal on metal? Is that what you mean by metallic? So, the groan eventually disappeared, but turned into the metallic sound? I hope fourfourto can post a sound link .. I'm curious if it's the same sound as yours and mine.

I think I need to drive mine normally now and not be afraid to hear that groan. I've been pampering it at stops because I just don't want to hear that groan sound. I'm so tired of it. Maybe it needs to break down before someone will take it seriously. Thanks for the update!!! Let us know what happens after the t/case breakdown!! (Ohhh, congrats on having a quiet drive now! :D )

[fourfourto]

Hmmm3 try to also get a sound file of yours and list it on putfile.

I will get a sound/video clip tommorow afternoon and list it tommorow night.(Ive been waiting to take a day video)


That groan gives me chills right up my spine:eek:


F5 My brother said he might be able to borow a mechanic ear ,If he can get one I will inspect the noise befor going to the dealer.

[fourfourto]

Well I took 5 sound/videos.:confused:

Not really a groan from the outside more of a rattly springy vibrating type noise.

Let me know what you think :grouphug: opinions


:shhh: :rant: the dealer said noise is normal :mad:


http://media.putfile.com/down-hill-right-side-brake-groan

http://media.putfile.com/downhill-left-side-brake-groan

http://media.putfile.com/brake-groan-tire-1

http://media.putfile.com/brake-groan-tire-2

http://media.putfile.com/brake-groan-tire-3

[H3PAC]

Could that noise be the anti-lock system?

[fourfourto]

Im not hitting the brakes hard enough for the anti locks to kick in.
Also I think the pump is up front.

[Hmmm2]

fourfourto .... THAT'S IT! Mine is more of a groan sound when INSIDE, more like your #1 sound clip. Your others are like my outside sound .. groany, springy. What in the world is this about?! I'm hoping f5fstop listens to your sounds soon. I wonder if this is what his groan had sounded like, too. (I was at the dealer today .. my battery died at the gas station. :mad: They gave me a new one.)

[Hmmm2]

By the way, nice rig!!! Great backdrop ..nothing like the great East in the fall! :D

[fourfourto]

fourfourto .... THAT'S IT! Mine is more of a groan sound when INSIDE, more like your #1 sound clip. Your others are like my outside sound .. groany, springy. What in the world is this about?! I'm hoping f5fstop listens to your sounds soon. I wonder if this is what his groan had sounded like, too. (I was at the dealer today .. my battery died at the gas station. :mad: They gave me a new one.)


It does sound a little different from the inside.
It also was louder then I thought on the outside.
It must sound like a POS comming to a stop:o :( :crying:


Took video 1/2 mile from my house on the north shore at calahans beach.
Thats connecticut across the LI sound.

[Hmmm2]

Could that noise be the anti-lock system?
They had checked my anti-lock system when it had been in at the dealer for that last long haul. It checked out fine .. no noise or problem. Good thought, though.

[f5fstop]

To me, mine sounded more metallic, especially when the pickup was on the t/case. But it could be something ratching inside the t/case.
First of all, when was your vehicle made? (Manufacturing date.)
Mine was very early...

[fourfourto]

The sticker on the door says 06/05 (is that the manufacture date?)my vin is 5gtdn136668111776 I took delivery on 8/12/05. Im almost at 21,000 miles.

Assuming its not the tranfer case what could cause that kind of noise?

[f5fstop]

Your actual build date is: 06/22/2005.
It sounds like something is ratcheting. Again, my suggestion is have the tech drive it with chassis ears on the t/case and see if that is actually where the noise is coming from.

[fourfourto]

Does all the dealers have chassis ears ?

Im either going to bring it in this friday or next friday.
I think Ill stick around dealer and wait.

Do you recomend I email him a link to sound file before going in.
Maybe send one to the salesman that sold me the h3 also ,he was very nice.He also remembers my name when I see him at the dealer.:D

Hmmm3 when are you bringing it in

[Hmmm2]

I'm debating whether I should take it to the dealer who last told me "It'd be better if something breaks down so we can tell what's going on" .. and that "It's normal for all H3's", or, should I take it back to the dealer who said my rotor was warped and replaced my brakes. That kept the groan away (for some reason) for a couple of months. I'm going to wait a week, at least. They know the sound that mine makes. Even when hearing it, they kept a straight face. :mad: Don't forget, I went through the whole "GM" thing with a case history. I just began to brake normally yesterday, without pampering the brakes ... so the groan will begin building up again. That could take a day or a week.

f5fstop ... my build date rubbed off the side door. How can I find out what it is now? Can I tell through the vin#?

[Hmmm2]

Does all the dealers have chassis ears ?


I'm pretty sure that f5fstop had told me long ago that each service dept should have at least one set of Chassis Ears. I guess it depends if they know how to use them, too. (:giggling:)

[f5fstop]

I'm pretty sure that f5fstop had told me long ago that each service dept should have at least one set of Chassis Ears. I guess it depends if they know how to use them, too. (:giggling:)

That, and if they know where they are in the tool room.:jump:

Hmmm3: Send me the last eight digits of the VIN and I can tell you the build date.

442: Just tell the dealer you had a friend who had the same type of noise, and the dealer used chassis ears, fixed the problem by replacing the T/case.

[f5fstop]

I just did some investigation and here is a PI that was issued:

Subject: Internal Transfer Case Noise - keywords grind growl rattle #PIP3467B -



Models: 2006-2007 Hummer H3




--------------------------------------------------------------------------------

PI is being updated to add model years. Please discard PIP3457A.


--------------------------------------------------------------------------------

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:
Any type of internal transfer case noise.

Recommendation/Instructions:
Engineering is conducting an investigation on internal transfer case noise. If the abnormal noise can be isolated to the transfer case using conventional methods, please contact the Technical Assistance Center for further instruction and diagnosis.

Note:: Remember do not operate the vehicle in unlock (4hi) mode on the hoist as damage to the planetary gear set may result due to an over speed condition.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

[Nextlife]

Hummmm.... Mine does this too. 14k miles. Thought it was just rust on the rotors or something. Seemed like it went away with a really hard brake for me... But it does/has come back on and off. I'll be watching this thread to see what you guys find out.

[fourfourto]

Note:: Remember do not operate the vehicle in unlock (4hi) mode on the hoist as damage to the planetary gear set may result due to an over speed condition.


Does that mean you can operate it in 4 hi lock or 4 low lock up on the lift?
I would think it will also due damage.


:rant: when I go to bed and shut my eyes and its all quite. I hear grrr grrr grrr

Its stuck in my freekin head:eek:

[f5fstop]

Hummmm.... Mine does this too. 14k miles. Thought it was just rust on the rotors or something. Seemed like it went away with a really hard brake for me... But it does/has come back on and off. I'll be watching this thread to see what you guys find out.

Believe me, if it was the t/case, the noise would not go away with a very hard stop. Rust on the rotors will do this, but once burned off, the noise will go away. Rotors are cast iron, so rust while sitting in a rain storm is normal. But applying the brakes will burn off the rust on the firepath.

[f5fstop]

Note:: Remember do not operate the vehicle in unlock (4hi) mode on the hoist as damage to the planetary gear set may result due to an over speed condition.


Does that mean you can operate it in 4 hi lock or 4 low lock up on the lift?
I would think it will also due damage.


:rant: when I go to bed and shut my eyes and its all quite. I hear grrr grrr grrr

Its stuck in my freekin head:eek:

Won't cause an overspeed condition. Besides, the sound is not noticeable on a hoist. Has something to do with the dynamic weight shifting during heavy braking. My guess, it might be a shift fork...

[Hmmm2]

:rant: when I go to bed and shut my eyes and its all quite. I hear grrr grrr grrr

Its stuck in my freekin head:eek:
:iagree: I know exactly what you mean.

[Hmmm2]

Hmmm3: Send me the last eight digits of the VIN and I can tell you the build date.
f5fstop ... the last digits of my vin# are:68111746. :D

Thanks!

[f5fstop]

f5fstop ... the last digits of my vin# are:68111746. :D

Thanks!
06/22/2005 :clapping:

Damn, you have had more rear brake pads replaced in that vehicle, than I have ever replaced since disc brakes were installed.:dancingbanana:

Go tell the dealer to put the chassis ears on the t/case, or have a technician strap himself to the bottom of the vehicle with tie straps with his ear on the t/case and listen to see if the sound is coming from the case.

Take that bulletin I posted, and tell them to fix the damn thing right. Tell them you know someone who had the same noise, and the noise went with the t/case.

Good luck.

[fourfourto]

Hmmm3 has the same built day as me
F5 when was yours built?

Im going to call the dealer and bring it in on friday. grrr:mad:

[f5fstop]

Hmmm3 has the same built day as me
F5 when was yours built?

Im going to call the dealer and bring it in on friday. grrr:mad:

Mine was built: 04/27/2005. It was almost considered a captured test vehicle. :jump: Only trips to the dealer for H3 service was the top off of the t/case fluid, a new TCCM, and then I had the t/case replaced. For such an early built vehicle, I sure did luck out.

[Hmmm2]

Hmmm3 has the same built day as me :beerchug:

[fourfourto]

I called the dealer today .I emailed them link to video/sound file they could not open it.they said links and attachements are blocked.Im bringing it in friday,they said they have the ears to locate were sound is comming from.They also said the trans case buletin shows no fix ? I said replacment would fix it if thats the problem,he said he dont know?
I will bring my camera with the video/sound file on it also when I go in and hang out to see what happens.

I do wonder were the noise is comming from hopefully they can locate it.


F5 is there any other info I can give them?

[f5fstop]

I called the dealer today .I emailed them link to video/sound file they could not open it.they said links and attachements are blocked.Im bringing it in friday,they said they have the ears to locate were sound is comming from.They also said the trans case buletin shows no fix ? I said replacment would fix it if thats the problem,he said he dont know?
I will bring my camera with the video/sound file on it also when I go in and hang out to see what happens.

I do wonder were the noise is comming from hopefully they can locate it.


F5 is there any other info I can give them?

Noise travels down the driveshaft to the axle and out. That is what I was told today. In my case, the new t/case did fix the problem.

[fourfourto]

Its going to the dealer friday morning ,I hope they figure it out and know how to use the ears properly.

My brother said my noise sounds similar to when you put it in park when your still rolling.:eek:

[Hmmm2]

My brother said my noise sounds similar to when you put it in park when your still rolling.:eek:
:eek: Yes, :iagree: , that noise is like something you'd hear on some old truck on it's last leg. I know that mine makes a similar sound on the outside because I've seen the expression on people's faces when I come to a stop.

f5fstop, if I haven't already done so, THANK YOU for finding my H3's build date!! Can you really see how many brake pads were put on my H3 through the vin#???

[f5fstop]

:eek: Yes, :iagree: , that noise is like something you'd hear on some old truck on it's last leg. I know that mine makes a similar sound on the outside because I've seen the expression on people's faces when I come to a stop.

f5fstop, if I haven't already done so, THANK YOU for finding my H3's build date!! Can you really see how many brake pads were put on my H3 through the vin#???

All service history, dealer vehicle was shipped to, dealer that sold the vehicle, and complete build history. Also, a branded title, GMPP, but no owner of record. That is another system, that I do not have access to (don't want it either:giggling: ).
Service history is important for researching problems on vehicles.

[Hmmm2]

All service history, dealer vehicle was shipped to, dealer that sold the vehicle, and complete build history. Also, a branded title, GMPP, but no owner of record. That is another system, that I do not have access to (don't want it either:giggling: ).
Service history is important for researching problems on vehicles.
GMPP? :eek: They're not personal remarks put in by dealer service mgrs, are they?? :giggling: I'm sure they had a few words about me and how persistent I was. GG, wait til I have to go back again with my grind/groan. :D

[fourfourto]

:rant: I just got back from the dealer.They hooked up the ears had 2 mechanics out in it and said its definiatly comming from the brakes.Transfer case,axle ect not making noise.They said they cant do nothing they tryed calling hummer tech and couldnt get through.I said I will wait untill they do I have time....They got through to tech and they said they shouldnt have replaced pads at 12,000 miles and cant change pads now.


TAC found no updated parts available//case # 9256114// no repair to be performed at this time.
TAC stated//normal condition of vehicle braking system//metalic brake pads will cause condition.
:lame: :confused:


Anyway the service rep said all he can do for me is to have a hummer rep meet me at the dealer and go from there.
The service manager said he will call me this afternoon to set a day and time.


This is starting to get me fustrated :crying: :(

[f5fstop]

GMPP? :eek: They're not personal remarks put in by dealer service mgrs, are they?? :giggling: I'm sure they had a few words about me and how persistent I was. GG, wait til I have to go back again with my grind/groan. :D

No personal remarks. However, they have set up a new tab labeled "BEBE.":dancingbanana:

[f5fstop]

:rant: I just got back from the dealer.They hooked up the ears had 2 mechanics out in it and said its definiatly comming from the brakes.Transfer case,axle ect not making noise.They said they cant do nothing they tryed calling hummer tech and couldnt get through.I said I will wait untill they do I have time....They got through to tech and they said they shouldnt have replaced pads at 12,000 miles and cant change pads now.


TAC found no updated parts available//case # 9256114// no repair to be performed at this time.
TAC stated//normal condition of vehicle braking system//metalic brake pads will cause condition.
:lame: :confused:


Anyway the service rep said all he can do for me is to have a hummer rep meet me at the dealer and go from there.
The service manager said he will call me this afternoon to set a day and time.


This is starting to get me fustrated :crying: :(

Different noise than I had, not sure what else to say; except call Hummer Assistance and open up a case.

[Hmmm2]

No personal remarks. However, they have set up a new tab labeled "BEBE.":dancingbanana:
LOL .. as in "HummBebe"??? :jump:

[Hmmm2]

Anyway the service rep said all he can do for me is to have a hummer rep meet me at the dealer and go from there.
The service manager said he will call me this afternoon to set a day and time.

This is starting to get me fustrated :crying: :(
Wellllll, this is what happened to me, fourfourto, beginning back last June. I eventually called GM Customer Service and got a case#, going to the 2nd level after the first gal tried all that she could. The gentleman I finally dealt with was fantastic .. a true asset to GM, in my opinion. Anyways, I never DID get to meet with the Hummer tech. Make sure you are there when he is!! I'm sure it will make a difference to get your opinion in on it. A Hummer tech/rep happened to be there on another case, so looked at mine, too. No one told me. :rant: My GM Cust. Srv guy told me what the Hummer rep reported .. basically the same as your report from the dealer today. He did, however, strongly encourage me to try another Hummer dealer, which was a real pain in the rear, for me. I did, however, and had great satisfaction until I began hearing it coming back somewhat over the last couple of weeks. PLEASE post what happens once the Hummer tech/rep talks to you and sees your H3! When I decide on when to take mine in, I'm going to have them use the Chassis Ears on the t/case and see what they say. Do you think you'll be seeing the rep next week? Good luck! Stay determined!

[fourfourto]

The service rep just called he couldnt get in touch with the hummer rep yet said he will call me on monday.
I will see what happens with the hummer rep before I call hummer assistance.
The service rep says maybe he will have some sugestions on what to do?.


F5 thanks for all the help it would have been easyer if my transfer case was bad,but its not likely unless they didnt check the noise properly,butI think they did?
Any info on brake troubles you come accross let me know.
Is there anything I could mention to hummer rep to get somewhere with this?

Hmmm3 did hummer assistance or rep tell you anything but try another dealer?.
My dealer will probobly do anything they have to if they get ok from hummer?

[f5fstop]

If it is really metallic brake noise, replace the pads with pure organic brake pads. They wear faster, but for rears that should not be a big factor.
But the strange thing is all of us have the factory rear brake pads, and only a few have this noise.

[fourfourto]

If it is really metallic brake noise, replace the pads with pure organic brake pads. They wear faster, but for rears that should not be a big factor.
But the strange thing is all of us have the factory rear brake pads, and only a few have this noise.


There must me more to it then the pads.
I am determined to get this figured out even if I have to eventually take it apart myself.

[Hmmm2]

Hmmm3 did hummer assistance or rep tell you anything but try another dealer?.
My dealer will probobly do anything they have to if they get ok from hummer?

I wrote a lonnnng post here and decided to delete and just answer your direct question without getting so wordy. Bottomline is that if the GM/Hummer tech rep reports that there isn't a problem, or, that it's normal for an H3, or has zero safety concerns .. Hummer Assistance can't do anything about it. Hummer Assistance said they have to go by what they are told about the vehicle by their field person since they are the field experts. I was really upset, especially since I had other issues with my H3 all along the way (cylinder head/valves, hood repaint, air intake box repaints, engine light, stabilitrak, etc., etc.) The dealer can't make the 'fix' if the field rep doesn't approve any fix. When I went to the other dealer, the made a fix and it had been gone for a couple of months. (The groan is coming back, especially when I have to brake suddenly. Mine used to sound as bad as yours (sorry!), but is now just building momentum again. (:eek: )I'm going to let it build before I go back again. I may try the 3rd dealer next time.) let us know what happens with the field rep!

[lotus4s]

I"m going to have to quit reading these trouble threads as every time I do my truck develops the problem. Mine just started the "groan" this week at a little over 11K miles. Sounds just like 442's sound files.....:rant:

[fourfourto]

lotus4s sorry to hear you got the grown,maybe your dealer has a tech thats smart enough to figure it out.Do you know your build date ?.
Keep us:grouphug: updated.

[lotus4s]

Don't know the build date but I bought mine in late Feb 06.

[Hmmm2]

Don't know the build date but I bought mine in late Feb 06.
Lotus4s ... look at the decal on the drivers side, inside door jamb. The build date is on the upper right hand corner. Fourfour2 and I both have the same build date .. we both have '06's. The groan in my H3 sounds just like fourfour2's also. It could be something inherent to our build date. Please check when you can. If we :grouphug: , we may be able to find the problem. Thanks!

[lotus4s]

Build date according to the sticker is 09/05......thanks for that info.

[Hmmm2]

lotus4s, well, your build date is not the same as mine or fourfour2's. Ours was built on 6/22/06. It looks like you'll have to go the same route as we did .. and, f5fstop, and have it checked out. Read the posts on this thread .. make a copy of the bulletin regarding this sound closer to the top of this thread and take it with you to the dealer. PLEASE keep us updated as to whatever you find out from your dealer. We're ripping our hair out already for a number of months trying to figure this out. So far, f5fstop has had his fixed.

[HummBebe]

No personal remarks. However, they have set up a new tab labeled "BEBE.":dancingbanana:


WHa????:giggling:

[lotus4s]

WHa????:giggling:


:jump:


As of right now I'll probably wait until it gets worse or something else comes up to take it in as it only does it on hard stops, but I will keep you guys/gals posted.

[fourfourto]

F5
If its not to much trouble could you see if theres any memos ,bulletins or any complaints on the brakes.

Also Im guessing that the brakes are the same on the 2007.

Hopefully the service reps on the ball and calls me monday with a apointment to see the field rep.
The only fix or repair I would be happy with would be new pads ,new rotors, new calipers.
Im sure they will replace everything or do nothing and continue to say its normal.

Im hoping for the best and will go in with a good attitude :D ,I might not leave that way.:mad: Grrr grrr ...

[Hmmm2]

Good luck, fourfourto. I got new brakes/pads, but the rotors were turned again.:mad: But, as you know, my groan is coming back (in more ways than one!) Hope you hear something on Monday.

[fourfourto]

No call from the dealer today :mad: I will give them a couple days:yawn:

[Hmmm2]

No call from the dealer today :mad: I will give them a couple days:yawn:
Uhhhh-huhhhh....well, don't wait too long. very frustrating, I know.

[fourfourto]

I called the dealer to see whats up and they told me they left voice mails and emails to the hummer field rep they got no response as of today.
They said they didnt forget about me they will contact me soon,the rep takes a while to get in touch with.

So I will give it time and see what happens when I get to see the field rep(If I ever get to see him)

Why would it take a week to contact a field rep :confused:

GRRRr Grrrr :mad:

[Hmmm2]

Why would it take a week to contact a field rep :confused: GRRRr Grrrr :mad:

I have no idea..obviously it shouldn't, in my opinion. GM Customer Service told me that they are regional when I complained that I kept getting the same response you just told me. He said he'd look into it. He called me back and said that all the field reps were away for a two week period (meetings?) last June and that was why I had been waiting. However, as you know, I never DID get to talk to the rep who looked at mine. They did it themselves and told me the outcome after the fact.:rant:

[f5fstop]

Well, if they are talking a regional service engineer, there are not enough to go around. Top of my head....twenty to cover the entire country.

[Hmmm2]

Well, if they are talking a regional service engineer, there are not enough to go around. Top of my head....twenty to cover the entire country.I could be wrong, but I don't think they sent a regional engineer. They kept telling me he/she was a GM field rep. The one who looked at mine was a 'he' and GM Customer Service told me that he was based in the Sacramento area. There were two possible reps who could have looked at mine .. so that means there were at least two who rotate S. California. After talking to my serv. mgr, he found out which one looked at my H3. Maybe fourfourto will get a service engineer!:D

[f5fstop]

In 442's neighborhood, I know three of the regional service engineers (maybe four), who I worked with for many years. So, 442 if you get one out there, give me his name.:dancingbanana:

[fourfourto]

Thanks F5:D If I get his name and email add before going in I will PM you it.:shhh:
I was thinking of emailing rep the sound files also before meeting with him.
When I hear from the dealer Ill try to get that info from them.
If I dont hear from the dealer by monday I will give them another call and try to get name and email of rep.

For now a temporary fix is keep the radio on feather the brake and live with the GRRRr Grrr :o

[Hmmm2]

In 442's neighborhood, I know three of the regional service engineers (maybe four), who I worked with for many years. So, 442 if you get one out there, give me his name.:dancingbanana:
Ohhhhhhhhhhhh mannnnn .... now you have an 'in', fourfourto!! :D Well, at least, I'll get to hear what the problem is from you once they figure it out, then take it from here MYSELF! (:giggling:)

[fourfourto]

:rant: Its tuesday I just called the dealer they didnt get a call back yet from field rep(said they think hes on vacation :confused: )
They will try again today .They wouldnt let me know his name(they said the reps dont like to give there names out )
If I dont hear from them by friday I will call hummer assistance and see what they can do on monday

The dealer said there not sure what the rep could do since there is no fix to the problem yet.I told them something has to be done I cant live with the noise

There has to be a record or something with the brakes since others have the same problems.
Any Idea's ?




GRRR Grrr :mad:

[Hmmm2]

Well, you could do what I did the first two separate times I began hearing it in mine. When they said they didn't know what it was .. I handed them the keys and told them I would not drive it .. I thought it could be a safety risk. They said they were 'pretty sure' it would be okay to drive. "Pretty sure' made me feel uneasy. So, I took a loaner. They fixed the noise for 2 weeks .. and then it went back again. I asked for the loaner again. That was MY beginning to all of this. They didn't like it sitting there since GM gets the bill for the loaner. Finally, it was during that down time at the dealer that the field rep had shown up.

[marin8703]

hey,

today for the first time i heard the sound, but i got two different sounds.

I have one where it groans rite before the truck stops during a hard brake. I think thats normal, just the brakes slipping maybe not, but thats not what im concerned with.

The second sound comes rite after the truck stops and as the rear end drops down. Its not too loud and it has a ratchet type sound. I also have the exact same sound when i shift from park into drive/reverse.

f5fstop, does the transfer case one sound more like the first or second i described? Did you also have the sound when shifting park to drive/reverse?
did your sound occur as the rear end drops after hard braking or as it stops.

im gona see my dealer soon, but from what i've been reading around here about this sound, im gona get ready for some hard headed bs.:)

thanks!

[fourfourto]

Does it sound like the video / sound file I listed on this thread?




hey,

today for the first time i heard the sound, but i got two different sounds.

I have one where it groans rite before the truck stops during a hard brake. I think thats normal, just the brakes slipping maybe not, but thats not what im concerned with.

The second sound comes rite after the truck stops and as the rear end drops down. Its not too loud and it has a ratchet type sound. I also have the exact same sound when i shift from park into drive/reverse.

f5fstop, does the transfer case one sound more like the first or second i described? Did you also have the sound when shifting park to drive/reverse?
did your sound occur as the rear end drops after hard braking or as it stops.

im gona see my dealer soon, but from what i've been reading around here about this sound, im gona get ready for some hard headed bs.:)

thanks!

[marin8703]

Does it sound like the video / sound file I listed on this thread?

The one sound where is rite before the truck stops sounds like the sound files, except alot quieter.

Then rite as the rear end drops there is another sound, kinda ratchety and also not too lound. i have the same sound also when shifting into drive or reverse. That seems like its also coming from the back.

The second sound im talking about is really amplified when in a parking garage, sounds 10 times louder.

[fourfourto]

The one sound where is rite before the truck stops sounds like the sound files, except alot quieter.

Then rite as the rear end drops there is another sound, kinda ratchety and also not too lound. i have the same sound also when shifting into drive or reverse. That seems like its also coming from the back.

The second sound im talking about is really amplified when in a parking garage, sounds 10 times louder.

Did you look at your rear suspension shocks leafs ect.

Otherwise it could be the brakes.
The dealer said my noise is comming from the brakes...:twak: But what do they know.I think its the brakes because it stoped after they cut rotors and put on new pads ,6,000 miles and noise is back

Bring it in to your dealer maybe some teck is sharp and will figure it out?.

My dealer says theres no fix its normal,
Im still trying to get appt with a field rep(2 weeks nothing).
I might call hummer assistance friday or monday.

[fourfourto]

Well I just called the dealer ..again:(
He said the rep still didnt get back to him about my problem.
The service rep did say he spoke to field rep last week when he saw him at the dealer.:confused: The field rep said he would get back to serv rep and he still didnt at this time.

I dont understand he talked to him at the dealer.:lame:

I just called hummer consumers relations at 1 866 486 6376

I got a file # and was told I would hear from a manager within 2 days.

So I will see what happens again:(
Hopefully something will come of this.

[Hmmm2]

Geeeez, fourfourto. Why was the field rep out at the dealer and didn't set up an appointment to see yours? And, why did your dealer say last week that he thought the field rep was on vacation? I got the same runaround. The field rep just happened to see mine while checking out another H3 .. and they never called me. :rant: I am MORE than curious to hear what GM Customer Service will tell you in two days. I called 866-790-5700. You have a different # for them? If the first level person at Customer Service can't seem to help you, tell him/her you'd like to 'escalate' your case to the next level up. The next person above him/her has more authority. But, you have to get through the first person first. Good luck and PLEASE post any progression!

[fourfourto]

:yawn: Im not holding my breath :yawn:

The # I used was listed here by F5 they probobly go to the same location.

The phone rep said thank you for calling cadillac:eek: I said its a hummer she said sorry thanks for calling hummer:D

[fourfourto]

The hummer cust service manager called me today said she tryed contacting the dealer and service manager was not in.? She said all they could do is call the dealer ,she has no contact with the fields reps.They said they will confirm with the dealer about a field rep looking at the problem.

She said in this area they might only come once a month?.
I told her serv rep seen him last week still no apointment,the dealer been trying to contact him for over 3 weeks.

Anyway she said she would call me next week and theres a record of the problem.

yadda yadda yadda GRrrr Grrr gr :mad:
:yawn:

[Hmmm2]

The first GM Customer Service person can only check with the dealer Service Manager to see what has been done, and, hear his opinion. He/she can 'ask' if the GM field rep has been contacted, because the customer (you) is requesting it. That's all they can do, according to the gal I had on the first call. She told me if I couldn't find satisfaction at her level, then I could escalate to the next level. I had already done so much on my own prior to contacting GM, that all she was doing was what I had done in the very beginning. The next person will go by what the field rep suggests ..no matter what. They consider the field rep as the field 'expert' and they don't question his expertise. This is what I was told by the 2nd level GM Customer Service rep. As you know, I had told you this ad nauseum already. :giggling: But, my outcome was ..."Normal for H3's". So , I went to another dealer. BUT, it seems that after all of that, a few more H3's went in with my same problem and they were taken care of. I'm just waiting on my groan to get back to the way it was before I go back in again. Plus, I'm waiting on my top windshield moulding to come in. Keep posting, fourfourto.

[Hmmm2]

Heasr anything yet, fourfourto?

[fourfourto]

:yawn: Just sitting here waiting by the phone :yawn:

The customer service lady said she would call on monday..
Isnt today monday :confused: no surprise


I think ill wait till friday then call the dealer.

If I here from them before then I will get a surprise :giggling: :D

[Hmmm2]

:yawn: Just sitting here waiting by the phone :yawn:

The customer service lady said she would call on monday..
Isnt today monday :confused: no surprise


I think ill wait till friday then call the dealer.

If I here from them before then I will get a surprise :giggling: :D

Geeez ... it's Thursday. No call yet? Bummer. Is the graon about the same as your audio clip, or has it gotten worse? :popcorn:

[fourfourto]

No call yet :mad:

My wife told me its been worse the last couple of days,I havent drivin it since sunday and its very noticable.

:o My wife says its very embarrassing :o


Help F5 any new info on brakes Im going freakin crazy
Me:crying: :crying:Wife

Me:twak:Hummer Rep

[HummBebe]

ff2,

Squeaky whell gets the grease, don't wait for them to call you,

YOU CALL THEM, DAILY!

:rant: :rant: :rant: :rant: :rant:

[Hmmm2]

ff2,

Squeaky whell gets the grease, don't wait for them to call you,

YOU CALL THEM, DAILY!

:rant: :rant: :rant: :rant: :rant:

That's what I did. I also kept a journal of every conversation I had since day 1 .. their name, the date, the time and what was said. Just keep leaving messages until they call you back.

[fourfourto]

:rant: I called the dealer today no one answered so I got back on with the operator ask for lucus they said hes on the other phone and put me on with another service guy ,He took my name and # and said I will get a call back.That was at 3pm no call . I just called and service department is now closed.

I just called the hummer customer relations manager.Susan isnt in today Another person said they did not get a call back from the dealer about my case.:twak: I ended up leaving a voice mail for susan,she will be in monday.

I will try the dealer again on monday and also call susan at hummer:mad:

[Hmmm2]

:rant:
I just called the hummer customer relations manager.Susan isnt in today Another person said they did not get a call back from the dealer about my case.:twak: I ended up leaving a voice mail for susan,she will be in monday.

I will try the dealer again on monday and also call susan at hummer:mad:
When I first called GM Customer Service, she told me they give the Hummer dealer 48 hours to respond. She said that I would receive a call back from her (GM) to let me know what the Service Mgr at the dealer told her. That happened on the morning of the third day. I can't believe she kept you hanging that long! :rant: They must have some sort of protocol to follow. Don't let up, fourfourto. I was like a pitbull ..lol.. but a nice one. I just wouldn't let up. :cool:

[fourfourto]

If They dont set something up in the next week or two Ill have to just bring it in and see what happens.

If They cannot do something by the timeI hit 24,000 miles(im at 21,400)
I will inspect myself(with my brother) when doing my tire rotation at his shop.Maybe We will notice something wrong.But thats 6 to 8 weeks away.

As a last hope I might try switching over to drilled and slotted rotors and either ceramic or organic pads,I was hoping not to do this untill it's out of warranty.;)


http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=012&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=220049336564&rd=1,1
Or
http://cgi.ebay.com/ebaymotors/2006-Hummer-H3-Drilled-Brake-Rotors-NEW-Set-of-4_W0QQitemZ160051956155QQihZ006QQcategoryZ33564QQs sPageNameZWDVWQQrdZ1QQcmdZViewItem

I got to look into the ceramic pads.


I wish someone would find the fix .:confused:


I feel :OWNED: Still love the hummer though:dancingbanana:

[fourfourto]

I just talked to customer relations they said they will replace the pads and rotors. I called the dealer and they need to get a call to confirm ,they did talk to the CR manager at some point already .The original customer relations manager wasnt available to talk to when I called .I left a voice mail for her to call service guy to confirm,and also get back to me .

I wont be able to bring it in till friday dec 1st anyway.

The service guy said the field rep has'nt got back to him yet:mad: Its been a month whats his problem:confused:

Hmm3 did they ever replace your rotors or were they just cut?

[Hmmm2]

Hmm3 did they ever replace your rotors or were they just cut?

They told me they 'replaced' my brakes. In actuality, I believe they resurfaced the rotors (finding one warped) and replaced all the pads again. This was the second go around. Also, they told me they cut the edges of the pads in a diamond shape (?). They said it would help since I live on a hill and have to brake every so often when going down. It did help a lot.

Are they actually going to REPLACE your rotors, or, just resurface them?? Let me know. I hope you get all new, fourfourto.

[fourfourto]

They will be replacing the pads and rotors, thats what Hummer customer relations said.The dealer said they need a confirmation call from HCR and they will replace both(he checked stock and has the rotors/pads) so I think it will work out .I made a appt for Friday Dec 1st 9am,I told them Ill wait and wont be needing a loaner car.

Lets see what happens ?

Funny how the field rep is still MIA

[Hmmm2]

Funny how the field rep is still MIA
Too bizarre.:rant:

[f5fstop]

They will be replacing the pads and rotors, thats what Hummer customer relations said.The dealer said they need a confirmation call from HCR and they will replace both(he checked stock and has the rotors/pads) so I think it will work out .I made a appt for Friday Dec 1st 9am,I told them Ill wait and wont be needing a loaner car.

Lets see what happens ?

Funny how the field rep is still MIA

Did you ever get the name of the field rep?

[fourfourto]

The dealer wouldnt give me the name of the rep,and as far as I know the field rep never got back to the service rep ? MIA

I have to call hummer customer service manager tommorow to verify the replacement of pads /rotors.I have a appointment for friday but they need to talk to the HCS manager again before doing work.?

Im still not 100 % sure whats going on.

[Ed Coryell]

...upon heavy braking.

This is being rephrased....
The problem will be worked on Today, on my vehicle.
Appears to happen only with warm brakes and a heavy stop. Light stopping does not seem to cause the groan.
I'll keep you guys/gals informed.

I took my H3 in last week because it started making the same noise when I braked a little harder than just slowing to a stop. I had it in a couple months ago for a different noise that turned out to be the transfer case (that was discussed in another thread), and they replaced that at ~ 12 K miles. They had my H3 for 2-1/2 days, did the sound tests, spoke with the GM engineers, and determined that it's a design problem with the rear brakes. They said it isn't a safety issue and that the brakes work fine, but that because of all the complaints they've been getting about the noise (at least three more came in to my dealer in the day after I dropped mine off, plus others across the country), that GM engineers will be redesigning the rear brakes and will probably issue a recall when they've worked out the noise problem.

FYI - I also had the driver's door light switch replaced - the connection went bad in the middle of the night a couple weeks ago, turning on the dome light and setting off the alarm. It stopped doing it the next day (maybe there was some moisture in the switch?), but I asked them to replace it anyway.

I'll keep you posted when I find out more.

[f5fstop]

Those rear brakes are almost identical to half-ton pickup truck; can't figure out why, there would be a problem. However, I know who exactly to call on this one.

[fourfourto]

GM engineers will be redesigning the rear brakes and will probably issue a recall when they've worked out the noise problem.

F5 Any official word that gm engineers are working on this?


I know who exactly to call on this one.

Who?

[f5fstop]

GM engineers will be redesigning the rear brakes and will probably issue a recall when they've worked out the noise problem.

F5 Any official word that gm engineers are working on this?


I know who exactly to call on this one.

Who?

Well, I thought I did, but it appears when I was off for three weeks, service engineering had a re-org in some of the areas. So, the engineer in charge of brakes is not someone I would call.:giggling: However, from other sources, there is nothing spectacular about the rear brakes, basically a carryover design from another series.
But, I'm not done calling....

[fourfourto]

Well :rant: I just got a call from HCS manager susan,The hummer cust rep I talked to last week gave me wrong info,they will not do a repair without OK from field rep.I called dealer sevice and cancelled appt for friday.He will try again to get in touch with the field rep...Here we go again:mad: GRrr Grr grr


I guess its a matter of time(long time).I will just keep calling :confused:


F5 any new info on the brakes would be GR8:D Thanks:D

[Hmmm2]

You know, this is really disconcerting. For those of us WITH the horrendous groan .. where it is SO loud and the driver can feel it in the pedal .. it doesn't give the Hummer owner a real good feeling about their vehicle. I love my H3 .. the look and drive of it. But, I hate all of the calls I had to make to GM/Hummer, leaving messages, not getting calls back, trips to the dealer, then trips to the OTHER dealer quite a distance away ... it's NOT the way this should be when you buy a brand new vehicle. I know from having vehicles throughout my life that their are little things that come up .. but in my opinion, this is major, time-consuming and does NOT add to the enjoyment of the vehicle. Something really needs to be done for those of us who have this issue, like finding a fix. They hear it and they agree it's 'something', but to push it off as "something normal for H3's" and not being a safety issue is not good enough. The driver knows something is wrong .. and the people outside of the vehicle and/or the passengers INSIDE the vehicle look in amazement at the horrendous sound. Had to vent. :rant:

[Hmmm2]

fourfourto, any updates yet??

[f5fstop]

I still say it is the t/case:beerchug:

[fourfourto]

I tryed calling the hummer CSR manager she hasnt got back to me with a update yet.The dealers still saying cant reach field rep.:twak:

Just living with the noise for now.

F5 :D I dont beleve its the tranfer case because the noise wouldnt have gone away when pads were replaced and the dealer confirmed the noise is comming from the brake area?..But what do they know?:confused:

No new updates on the brakes ? any mention of a problem?

[f5fstop]

No apparent problem with rear brakes on the H3, or the 1/2 ton pickups that use the same system. That doesn't mean it isn't the problem on your vehicle or Hmmmm3. Two vehicles or even 100 times your two vehicles would not affect warranty that much on a vehicle with the sales number the H3 has.
But your symptoms sure sound like mine, and the noise went away with a new t/case.

[fourfourto]

Maybe something will snap or explode in the case or the brakes .
Then they will know what and how to fix.
I regulary use 4h lock and 4low(at least once a month,not always for long periods)and I dont notice anything wrong with the case.All seems normal

If the dealer doesnt do anything by the end of January.
I will inspect myself when doing a tire rotation.(Im hoping issues will be fixed by then)

:rant: Noise is pissing me off even though Im getting used to it and my wife drives it every day.She loves the 3 even with the noise :)

Plan Z- Drilled and sloted rotors with ceramic pads all around
:dancingbanana::jump::dancingbanana:

[RubHer Yellow Ducky]

I've had a grinding noise for a while, slow easy stops and it sounds and feels like shoe brakes with the pads worn to the rivits from the REAR, took it in and they sanded the front. WHO KNOWS!

Will take it back before 12000 miles when I have other issues also.

Its not a MOAN but GRINDING and is most noticeable in slow light pressure stopping...

???????

RYD

[fourfourto]

:rant: I got a call from the HCS manager susan,she said she had contact with field rep(he was on vacation )funny how they couldnt reach him for over 6 weeks?.
She said he will contact the service manager.She would not give me his name.:shhh: (whats up with that f5 the service manger wouldnt give me field reps name either? they said only one in the area LI NY.The dealer is ramp hummer in st james Ny)she also said someone else would be taking over as HCS manager because its her last day in that dept.

So far no word from sevice manager I left a message today for him he was not available.

Its one small step foward but im still fustrated over the whole thing GRrr grrr:mad:

[HummBebe]

I would have had a Lawyer by now. That is just ridiculous.

You don't have to sue, but a letter might be good to get that 600lb gorilla off its ass.

[f5fstop]

I would have had a Lawyer by now. That is just ridiculous.

You don't have to sue, but a letter might be good to get that 600lb gorilla off its ass.

I have to agree....

[fourfourto]

:iagree: But remember this is a normal noise for the H3 nothings acually wrong..:twak: :mad: GRrrr Grrr rr




Im going to walk in there going Grrr grr grr rr a grrr grrr and tell them im normal:dancingbanana:

[HummBebe]

It's not normal if other people have had the same symptoms and had it repaired to their satisfaction.

H3's haven't been around long enough for anyone to use that term with confidence.

[HummBebe]

Dood,

you are from New York.....act like it.:giggling:

[fourfourto]

Who had it repaired to their satisfaction.:p The problem is no one got it fixed.There saying there is no fix they cant do nothing.
Thats why Im trying to get help from a MIA fild rep.

[HummBebe]

:p :p :p f5

In this post you said the tech said it was coming from the brakes. They obviously have no idea. But it is their job to figure it out.

http://www.elcovaforums.com/forums/showpost.php?p=318668&postcount=49

The Field Rep is avoiding you. Plain and simple. Or, someone has not been honest with you and actually contacted him.

Just tell them you want it fixed, now, please.

That's why an attorney would help. They know the laws and can blither blather the demand for satifaction or else. Because they identified it as the brakes, you could be in a potentially dangerous situation blah blah blah.

Squeaky wheel get the grease. Get assertive. I would never wait more than 24 hours for a call back.

I make my priority list the Harvard way every day. So do they. If you are not getting a call back, you are not making the list. If you are not making the list, they don't even know you exist.

[fourfourto]

I beleve F5 problem was not the same.:p UU :p

It has to be the brakes they replaced the pads and cut rotors at 12,000 miles noise came back 6,000 miles later.I now have 22,000 on it.

Im trying for new rotors/pads but they wont authorize it without the field rep.
I dont know what the f*cks going on

I got to see what the serv manager says tommorow.

[HummBebe]

Tell him the Queen of the 3bies said to QUIT FAWKING OFF :D

[f5fstop]

I beleve F5 problem was not the same.:p UU :p

It has to be the brakes they replaced the pads and cut rotors at 12,000 miles noise came back 6,000 miles later.I now have 22,000 on it.

Im trying for new rotors/pads but they wont authorize it without the field rep.
I dont know what the f*cks going on

I got to see what the serv manager says tommorow.

My biggest problem with this entire scenario (other than GM not getting the field rep out) is that there is no problem with the rear brakes that appears anywhere on warranty reports. These are not new style brakes, they have been around for many years. Rear pads, even on a large H3, should last for many moons (at least 50K). Rear brakes only do about 20% of the work when braking and going forward, unless a person does nothing but panic stops.

My noise at first was diagnosed as rear brakes. They raised the vehicle and disassembled the brakes and found no relation to the noise. They then went after the drivetrain, discovered the noise in the t/case, replaced it, and no more noise.

I can't sit here in my recliner and say it is definitely the brakes, or the t/case. I just know my sounds were similar to your sounds.

On the other hand, I still agree with Bebe. It has gone on too long now, and someone has to step forward and discover exactly what the problem is and fix it. If that takes an attorney to write a letter, or an appointment with an arbitrator, go for it. It appears, even on this site, there are only a few with this problem.

[fourfourto]

I finally get a call on tuesday from the CS manager from Gm,she took over the file and said she was sorry for any delays reaching the field rep (since 10/22/06)She said I will get something done by the end of the week.
Today I get a call from the dealer sevice manager saying I have a appointment with the field rep on 01/05/07 at 10:30 Am.:dancingbanana:

Hopefully he finds the problem and authorizes a fix.

[RubHer Yellow Ducky]

I finally get a call on tuesday from the CS manager from Gm,she took over the file and said she was sorry for any delays reaching the field rep (since 10/22/06)She said I will get something done by the end of the week.
Today I get a call from the dealer sevice manager saying I have a appointment with the field rep on 01/05/07 at 10:30 Am.:dancingbanana:

Hopefully he finds the problem and authorizes a fix.

Please keep us informed. I'm getting close to 12000 miles and the BRAKE GROAN is still in my YELLOW H-3 but not the GRAY H-3.

RYD

[fourfourto]

Mine originaly started around 12,000 miles.
YRD Did your dealer look at it yet?
New brakes and cutting rotors is only temporary fix.
Im hoping they will replace the rotors and brakes or whatever has to be done to fix it properly.

[Hmmm2]

fourfourto, you're not going to believe this, but my grinding/groan sound has gone away. I have made a couple of hard, fast stops recently going downhill as someone tried to cut me off .. and noooooo groan. In my own mind, it's almost like the pads 'reset' themselves. Remember .. the last dealer told me they cut the pads in a diamond shape?? I keep thinking it's going to come back. Can't wait to hear what you find out about your on Jan. 5th! Don't forget to post whatever you find out.

[fourfourto]

I give you a week before you post its back :beerchug:


Funny I was thinking the noise would stop at some point before Jan 5th.:giggling: :shhh: Dont jinks me ,hopefully I can do the driving(:rant: DEATH RIDEhttp://www.elcovaforums.com/forums/images/icons/icon8.gif) so I will give him the full effect of the GRrrr Grr grr.

[JV1]

I have been reading this thread for a long time now and feel it's time to jump in. We have had our H3 for over a year now (13,000 miles) and almost from the beginning the rear brakes have made the groaning noise. Seems that the RR is the worst. Wife and kids have been disgusted that I "won't take it in and get it fixed". I have never had any luck with any GM dealer being able to fix anything other than a part that was physically broken in half or a car that wasn't running. The last thing I want is to have my expensive OEM rotors turned down as a temporary fix.

My mechanical engineering background tells me the brakes aren't going to fail, they just have a systemic design flaw. I keep hearing people tied to GM stating that rear brake "groan" is inherent in the H3. That may be correct. Another correct statement is that rear brake "groan" is NOT inherent in a quality designed and manufactured vehicle. How many cars have rear brake groan? None of the fifty or so cars that I have driven in my life.

I understand the fact that these brakes were taken off some other vehicle where they performed flawlessly. I work in a high tech field where engineers do that all the time. They take a component, assembly, or system and use it on another model of the product we design and manufacture. More often than not the component, assembly, or system does not perform as it did on the original model. Why? Because the operating parameters are not the same. The temperature of the product is not the same, the RPM's are different, vibrations, oscillations, natural frequencies all are different. This would appear to be the case with the H3.

Based on what I have observed, I believe there is a problem with the front to rear balance valve (or however they get the F/R balance). The H3 literature states that the braking system is designed so that the nose does not "dive" when the brakes are applied. In my opinion the nose still dives and I see no difference from other vehicles. It seems to me that when you brake lightly, there is no rear brake action and therefore no groan. When you do medium to hard braking, there is limited force applied to the discs and therefore they grab and release, grab and release, grab and release, which gives the groaning noise.

With all these complaints, GM engineers should get off their butts and figure out what the problem is. However, if they can't fix some plastic marker lights in a year and a half, I guess there's no hope for a brake groan problem.....:violin:

[marin8703]

I have been reading this thread for a long time now and feel it's time to jump in. We have had our H3 for over a year now (13,000 miles) and almost from the beginning the rear brakes have made the groaning noise. Seems that the RR is the worst. Wife and kids have been disgusted that I "won't take it in and get it fixed". I have never had any luck with any GM dealer being able to fix anything other than a part that was physically broken in half or a car that wasn't running. The last thing I want is to have my expensive OEM rotors turned down as a temporary fix.

My mechanical engineering background tells me the brakes aren't going to fail, they just have a systemic design flaw. I keep hearing people tied to GM stating that rear brake "groan" is inherent in the H3. That may be correct. Another correct statement is that rear brake "groan" is NOT inherent in a quality designed and manufactured vehicle. How many cars have rear brake groan? None of the fifty or so cars that I have driven in my life.

I understand the fact that these brakes were taken off some other vehicle where they performed flawlessly. I work in a high tech field where engineers do that all the time. They take a component, assembly, or system and use it on another model of the product we design and manufacture. More often than not the component, assembly, or system does not perform as it did on the original model. Why? Because the operating parameters are not the same. The temperature of the product is not the same, the RPM's are different, vibrations, oscillations, natural frequencies all are different. This would appear to be the case with the H3.

Based on what I have observed, I believe there is a problem with the front to rear balance valve (or however they get the F/R balance). The H3 literature states that the braking system is designed so that the nose does not "dive" when the brakes are applied. In my opinion the nose still dives and I see no difference from other vehicles. It seems to me that when you brake lightly, there is no rear brake action and therefore no groan. When you do medium to hard braking, there is limited force applied to the discs and therefore they grab and release, grab and release, grab and release, which gives the groaning noise.

With all these complaints, GM engineers should get off their butts and figure out what the problem is. However, if they can't fix some plastic marker lights in a year and a half, I guess there's no hope for a brake groan problem.....:violin:
:iagree:, that was a good read.

[Hmmm2]

fourfourto, this is good info. After you hear what the Hummer field rep has to tell you on Jan.5, maybe you could give him JV1's thoughts, too. I think it's ridiculous for the dealers to say, "Yeah we hear it, but it must be something inherent to the H3." What?! Would we have bought it while hearing that awful sound during a test drive? Of course not. So why do we have to live with it now? I went through an awful time with the dealer last Spring/Summer. No one should have to spend that much time at a dealership with a new vehicle. THANKFULLY ... the groan has taken a hiatus (for some reason), though I cringe everytime I come to a stop .. anticipating that grind/groan sound. Good luck, fourfourto. I hope you find something out that can help us all out, too!

[fourfourto]

:iagree: good info from JV1 :clapping:
I will mention the proportionary valve to them friday(I dont think they like my input) Not sure how to check.

It also doesnt explain how it goes away after rotors are cut and new pads installed.
The service guy would like to replace rotors and pads he just needs an ok from hummer.
Im not 100% sure that will permentaly fix the problem,Ill see on friday.

Jv1 does your noise sound like my sound files?

Hmmm3 your noise went away:clapping: or you just not listening:shhh:

If a H3 driven by a deaf person comes to a stop with no one around does it make a noise ?:giggling:

F5 any input on the poportionary valve ?

[Hmmm2]

:Hmmm3 your noise went away:clapping: or you just not listening:shhh:

LOL .. good try, fourfourto! :giggling: I watch my H3 like a hawk ...nothing passes my ears or eyes when it comes to sounds, creaks, peeling A pillar mouldings, clear-coat missing from my hood, engine misfiring, stabili-trak probs, ...etc., etc. I've had a number of things wrong with my H3. Sometimes it had gotten to the point where I'd be the 3 with my son .. coming to a red light .. and I'd turn off the XM abruptly. My son would yell, "You did that just as the good part of the song was coming on!" I'd say, "Sorry, I had to listen to hear if the groan was coming back." As I had mentioned, I had heard it come back once .. sometime in September, I think. Then, not again. I would not only HEAR it, I could FEEL it in the brake pedal. It was very bad .. just about as bad as yours. I'm amazed that more people don't have the problem.

[f5fstop]

Just a note: The H3 has dynamic rear proportioning via the circuitry of the EBTCM and the lines to the front and rear brake calipers. If marketing says it will prevent the front end from diving, they are incorrect, and should be hung at dawn. Even, with NO front brakes, a sudden apply of the brakes will cause the front end of any vehicle to nosedive...something about physics.
The dynamic proportioning circuitry primarily takes effect during extremely heavy braking; a lot heavier than I hear here about the groaning noise. A lot heavier than my groaning noise that went away with a new t/case.

[fourfourto]

F5 didnt they have anti pitch /dive on the 95 to 99 Buick Riviera.
I noticed on the one I had (Great car 3.8 supercharged ahead of its time )it had a fitting on the struts to lock/dampen them during hard braking or acceleration.

[JV1]

From the H3 website:

DYNAMIC REAR PROPORTIONING
"Another integral part of this intelligent braking system is Dynamic Rear Brake Proportioning. This system modulates rear brake pressure and ensures that braking is balanced between the front and rear brakes. In English, that means that the nose of the H3 won't dive down while braking hard. And in any language, that means your passengers might not even notice what happened."

LOL - I guess they also have some other physics defying system. When the driver slams on the brakes, the nose locks so it doesn't dive and the passengers are held to their seats by a star wars invisible force field??? Who allows these people to write this stuff? :confused:

Fourfourto:
I listened to your sound files. I don't believe our H3 sounds the same but then again I've never stuck my head out the rear window to listen. Maybe I'll try it soon. With a noise as loud as yours it would seem that the mechanics ears would readily identify the major component that is generating the noise.

[Hmmm2]

From the H3 website:

DYNAMIC REAR PROPORTIONING
"Another integral part of this intelligent braking system is Dynamic Rear Brake Proportioning. This system modulates rear brake pressure and ensures that braking is balanced between the front and rear brakes. In English, that means that the nose of the H3 won't dive down while braking hard. And in any language, that means your passengers might not even notice what happened."

LOL - I guess they also have some other physics defying system. When the driver slams on the brakes, the nose locks so it doesn't dive and the passengers are held to their seats by a star wars invisible force field??? Who allows these people to write this stuff? :confused:

Fourfourto:
I listened to your sound files. I don't believe our H3 sounds the same but then again I've never stuck my head out the rear window to listen. Maybe I'll try it soon. With a noise as loud as yours it would seem that the mechanics ears would readily identify the major component that is generating the noise.

:iagree:

[Desert Dan]

Mine does a nose dive under hard braking but I think it is the shocks.



Toyota 4x4 trucks have a mechanical proportioning valve that reduces rear brake pressure under hard braking or light loads.

[Hmmm2]

fourfourto ... you're down to only hours now before you have the field rep FINALLY look at your H3!! Don't forget to post anything you hear after you talk to him/her. This should be good. ;)

[fourfourto]

I dont know where to start

Short version ... Dam Fvckin Bullshlt:mad: http://www.elcovaforums.com/forums/images/icons/icon13.gif


:rant: The GM field rep went for a ride with me along with the service manager.
It was making the noise but not as bad as it usually does(it was raining also)He said something about antilock brakes ,I said the pumps in the front and noise is from rear also Im not braking hard enough to kick in antilocks.I then did a panic stop at 30mph to kick in the anti locks and I said THATS THE ANTILOCKS and he didnt mention that again.
He drove back and He heared the noise but mostly was trying to feather off the brake short of the full stop or trying it at a 10 mph stop.I told him you have to stop from over 30mph for it to be noticable.I also said its worse stoping at the bottom of a long hill.
I also showed him the video on my camera explaining its a lot louder on the outside and said its embarrassing.
Anyway we get back to the dealer and he says he feels its not dangerous it is a Normal charactoristic of the H3 there is no fix he will look into it and bring it up with the enginers at the next meeting in a few weeks.
I said If we went for a ride with any H3 on the lot it wouldnt make the noise,he didnt say anything.
during the ride he did say it was the first time he was in and drove a H3:twak: How can he tell me normal if he never drove one:lame:

He did compliment my eclipse system and liked the rear camera.he also liked the clinometer.he was very nice during the ride.

When I asked him what could be done he said wait and see if it get worse also theres a file on it if I had a problem after the warrany ends,I said I cant live with it that long I have 23k on it it its warranty expires at 50K
He said if your not satisfied call the BBB .I said I didnt want to go that route at this point I just want it fixed,He said he will look into it and get back to me.
I asked him was he a service tech in the past he said he was a body tech,I think I know more then he did about mechanics.

More was said but end result was nothing.
I think I will give him a little time to "look into it" I dont have much choice

Im doing a tire rotation in about 1,000 miles at my brothers shop We will inspect the brakes ourselfs at that time ,maybe we can figure it out.


F5
I did get the field reps buisiness card with his name and info I will PM to you,Not sure if you can give any help considering we dont know what the cause of the problem is but your opinion his highly valued.

Hmmm3 I guess its your turn at bat :giggling:

Im Done for now
GRRR Grrr grrr I feel :OWNED:

[Hmmm2]

OMG, fourfourto!!!!! You are stuck between a rock and a hard place. I REALLY thought that this guy would have suggested a 'fix' for you .. or at least, re-do the pads again. I have to admit that I don't know anything about brake pads, but, the last dealership who looked at mine said they cut the pads in a diamond shape? Does that make sense? He said it would help considerably since I live on a (slight) hill. I have only had the groan come back once, and that was when I was the passenger in my H3 when it happened. I still can't believe that the field rep couldn't offer you anything more than "I'll look into it". Geeez, how long have you already been waiting?? Sounds like I'm venting, sorry. I went through a lot of that same nonsense, but I stayed a 'squeeky wheel' through it all. I couldn't stand the noise and the feel in the brake pedal when the groan happened. I really felt it was a disaster waiting to happen as I was going downhill. Fourfourto, check your pm's.

[fourfourto]

Hmmm3 I dont see any Pm's,I check later:D

I added your next up at bat but then realized yours stoped making noise,
Funny thing after I did the panic stop the noise was less noticable?
It was raining but the rep heard the noise.

I think im going to inhale a few beers :beerchug:

[Wisha Haddan H3]

That sure sucks 442. I feel for you.

What I don't get is how anybody can say that noise is "normal". Since when has brake noise EVER been normal on a vehicle? Brake noise has always meant bad things.

Good luck with this

[f5fstop]

I dont know where to start

Short version ... Dam Fvckin Bullshlt:mad: http://www.elcovaforums.com/forums/images/icons/icon13.gif


:rant: The GM field rep went for a ride with me along with the service manager.
It was making the noise but not as bad as it usually does(it was raining also)He said something about antilock brakes ,I said the pumps in the front and noise is from rear also Im not braking hard enough to kick in antilocks.I then did a panic stop at 30mph to kick in the anti locks and I said THATS THE ANTILOCKS and he didnt mention that again.
He drove back and He heared the noise but mostly was trying to feather off the brake short of the full stop or trying it at a 10 mph stop.I told him you have to stop from over 30mph for it to be noticable.I also said its worse stoping at the bottom of a long hill.
I also showed him the video on my camera explaining its a lot louder on the outside and said its embarrassing.
Anyway we get back to the dealer and he says he feels its not dangerous it is a Normal charactoristic of the H3 there is no fix he will look into it and bring it up with the enginers at the next meeting in a few weeks.
I said If we went for a ride with any H3 on the lot it wouldnt make the noise,he didnt say anything.
during the ride he did say it was the first time he was in and drove a H3:twak: How can he tell me normal if he never drove one:lame:

He did compliment my eclipse system and liked the rear camera.he also liked the clinometer.he was very nice during the ride.

When I asked him what could be done he said wait and see if it get worse also theres a file on it if I had a problem after the warrany ends,I said I cant live with it that long I have 23k on it it its warranty expires at 50K
He said if your not satisfied call the BBB .I said I didnt want to go that route at this point I just want it fixed,He said he will look into it and get back to me.
I asked him was he a service tech in the past he said he was a body tech,I think I know more then he did about mechanics.

More was said but end result was nothing.
I think I will give him a little time to "look into it" I dont have much choice

Im doing a tire rotation in about 1,000 miles at my brothers shop We will inspect the brakes ourselfs at that time ,maybe we can figure it out.


F5
I did get the field reps buisiness card with his name and info I will PM to you,Not sure if you can give any help considering we dont know what the cause of the problem is but your opinion his highly valued.

Hmmm3 I guess its your turn at bat :giggling:

Im Done for now
GRRR Grrr grrr I feel :OWNED:


I replied, and for everyone else a regional or marketing area service manager is not usually technical. Always try and get a regional service engineer, as the name implies, they are familiar with the vehicle's working.

Ok, let me get off the t/case kick. If it is something in the rear brakes, then the only thing I can think of is a modulating frequency that happens when you harsly apply the brakes, which would make the vehicle sway forward and downward. When the piston inside the caliper is applied it generates a frequency since it is vibrating against the pad. Shims are installed between the back of the pads and the piston(s) to absorb this frequency. Usually, the shim will have some type of lubricant or be made of Teflon.
I'm only guessing here....
but could the lubricant on the shim be wearing off....
could the shim be bad altogether
could there be no shim installed?

On a different angle....
Pads, are also used to absorb the frequency between the pad and the rotor as well as generate the heat to stop the vehicle. A change in pads might solve the problem.

Just some thoughts, and that is all they are.

I guess on a hard stop, a bearing race could even be spinning slightly in the hub. Not sure what they might sound like....

[fourfourto]

Do the brakes normaly have shims or only when needed?
I can pop the pads off myself and look,also I can add teflon lub if needed.
Im going to inspect next month when I do a tire rotation.

For now im living with it till its figured out.

You would think they would have sent a engineer .He never took it into the shop.

[f5fstop]

Not all come with shims, but most I have ever seen do. You can purchase shims from an auto parts store and install one between the piston and the pad; might be worth a try; might not do a thing.

If you add lube, do it very sparingly.

[whaaaaT]

waaahooooo fourfourto! Im having the same problem just came on here to check and see if anyone else has it. Mines really loud and last a lot longer than yours but its when i break. I noticed your on long island. Are you taking your truck to ramp hummer? Cause thats where im going Monday to complain.

[fourfourto]

waaahooooo fourfourto! Im having the same problem just came on here to check and see if anyone else has it. Mines really loud and last a lot longer than yours but its when i break. I noticed your on long island. Are you taking your truck to ramp hummer? Cause thats where im going Monday to complain.


Yes I went to ramp hummer,lucas the service manager is a very nice guy,but still says noise is normal no fix?:twak: The field rep backed him up with normal also:twak: :twak:
Let me know what happens .
Does your noise come at the end of the stop?

Where are you on long island ,do you ever go to smiths point beach?

[RubHer Yellow Ducky]

I read through the entire manual again. I can't find ANYWEAR where it says

"The H-3 HUMMER has an exclusive GROANING noise in its brakes so as to make this vehicle stand out from all others"

RYD

[whaaaaT]

yea i go to smith point sometimes. Im in medford. I went to that trip with the dealer to paragon too if you went you probly seen me. I had a black one. Brought my girlfriend. Black hair big boobs.

[fourfourto]

Say Whaaaat ! Boobies ....:jump:


A set of boobs is always something you should always bring with you wheeling,a perfect accessory for the H3:clapping:

Sorry I got distracted whaaat where we talking about.:confused:

Oh yeh let me know how it goes today with the boobies...Woops I mean the H3:rolleyes:

[Crash ?]

Somehow I've managed to avoid ever reading this thread.. I didn't want to temp fate.. Would rather not know there is a problem that could happen.. Wouldn't worry and be listening to every little noise that way..

Anyroads.. I scanned through the entire thing quickly.. Saw stuff about replacing pads, resurfacing rotors, sanding stuff, etc... If this IS just noisey pads it may be as simple as modifying the pad just enough to change any harmonic resonance..

The brakes on my motorcycle are some noisy SOBs... They squeal, they groan, they cuss at me, etc... I found that if the leading and trailing edge of the pads are cut off at a 45 degree angle, noises all but go completely away..

Just something to think about...

Rob

[Hmmm2]

Somehow I've managed to avoid ever reading this thread.. I didn't want to temp fate.. Would rather not know there is a problem that could happen.. Wouldn't worry and be listening to every little noise that way..

Anyroads.. I scanned through the entire thing quickly.. Saw stuff about replacing pads, resurfacing rotors, sanding stuff, etc... If this IS just noisey pads it may be as simple as modifying the pad just enough to change any harmonic resonance..

The brakes on my motorcycle are some noisy SOBs... They squeal, they groan, they cuss at me, etc... I found that if the leading and trailing edge of the pads are cut off at a 45 degree angle, noises all but go completely away..

Just something to think about...

Rob

Maybe that's why mine stopping groaning (except for once)?

[fourfourto]

Maybe that's why mine stopping groaning (except for once)?

Im going to rotate the tires next month and inspect the brakes myself,I will have it apart so I might as well shave the pads It couldnt hurt.
I might also add lube and add shims if needed.


hmmm :The once it did it could thet have been the antilocks?

[Hmmm2]

hmmm :The once it did it could thet have been the antilocks?

I was the passenger on that drive, so I don't know if it was the same as before with the brake pedal feeling, too. It had sounded the same as all the other times, though. I cringed and said, "Ohhhhh no ...". It was a pretty steep grade, though, and a very fast stop. I made a hard stop yesterday which SHOULD have made the groan (if the groan was going to happen) .. but, it didn't. I've never hit the brakes hard enough (in my opinion) to make the antilocks engage. Is it a similar sound, in your opinion?

[fourfourto]

I was the passenger on that drive, so I don't know if it was the same as before with the brake pedal feeling, too. It had sounded the same as all the other times, though. I cringed and said, "Ohhhhh no ...". It was a pretty steep grade, though, and a very fast stop. I made a hard stop yesterday which SHOULD have made the groan (if the groan was going to happen) .. but, it didn't. I've never hit the brakes hard enough (in my opinion) to make the antilocks engage. Is it a similar sound, in your opinion?

:shhh: silence is nice

Kinda similar.Grrr grrr gr
But different Gaaar gaar gar
Next time it rains/snows or in dirt(or the dry road if your a little crazy )get up to about 25 to 30 MPH and slam the brakes and hold it (no pumping ),you will here/feel it
Make sure no ones behind you, :eek: or use a parking lot.:giggling:

Its good to check out how the brakes stop during a panic stop.http://www.elcovaforums.com/forums/images/icons/icon14.gif

[fourfourto]

Short version....Im fvked :OWNED: :crying:






:rant: I get a call from the customer service manager from Gm.She tells me she spoke to the field rep and was told the noise I hear is normal.
File closed His decision is final.

WTF

She would'nt listen to anything I said(she did listen but said I can only go by the field rep)

She told me all she can do is send me forms for the BBB or I could call the attorney general .
:mad: I said send them

WTF

Also I asked about a extended waranty. she said Gm does not extend warranty on brakes

I guess I will have to live with it for now and try to fix it myself in a few weeks or 850 more miles at tire rotation ,Hopefully the brake lube and pad shaving does the trick

Or sue GMhttp://www.elcovaforums.com/forums/images/icons/icon13.gif and cost me more then putting in drilled/sloted rotors with ceramic pads.

Had to vent ,Can you here the wife venting in the background,I think shes gonna go to hummer and shoot the fvcks:giggling: :shhh:

[Hmmm2]

You've got to be joking?!?!?!?!?!?! She offered to send you BBB and/or forms for the Attorney General?!?!? Your groan is so loud, too, from what I heard on your sound link! My GM Customer Service Rep told me, too, that whatever the GM/Hummer field rep comes back with, is what he had to stand by... no matter what. I had quite a few problems other than the brake groan, so maybe that's why I got something from them. Brake groan, cylinder head, stabil-itrak, hood re-paint (twice), peeling A-pillar mouldings, now waiting on 2nd pair of mouldings, etc., etc. I had been without the H3 for long periods at a time. :crying:

I'd be very upset, fourfourto. :rant: Can you ask for the next person above your GM Customer Service rep? Was she the first person you spoke to, or the second? I had to go to the second person .. the first could only do so much ..like check with the Service Manager.

Does yours still sound as bad as it did in the link you had posted???? How can they call that normal????

[fourfourto]

The sounds the exact same as it was,It is a little less noticable in the rain.

I was dealing with a manager for customer service,she said theres no were else to go from here.:violin:

The field rep also mentioned the BBB.

When you want it done right do it yourself..thats what im going to try to do.:beerchug:

With my luck the head will go at 50,000.10

[JV1]

I gotta say, with the Detroit Auto show going on and GM losing market share faster than a speeding bullet, trying to figure out how to survive, this is one FINE example of great customer service.

:lame:

WTF GM?

[Crash ?]

I was dealing with a manager for customer service,she said theres no were else to go from here.:violin:


So she signs her own paycheck..??? Until you reach CEO there is ALWAYS another boss...

BTW.. You prolly don't want ceramic pads.. They may work well, but they are pretty delicate and may not do to well offroad.. Of course if you don't offroad...


Rob

[Hmmm2]

fourfourto, Crash is right .. there IS always someone higher up that you can talk to. It depends on if you want to go through the hassle .. and it is a hassle .. but, you're talking about your vehicle here! I wonder why you only had one person you could talk to at GM? Remember when I told you that you had a differnt phone number to call than I had? Well, that doesn't matter now since a field rep has now looked at your H3.

What I came back here to post is that AFTER the field rep looked at mine and said it was "Normal" .. my GM customer service rep strongly encouraged me to try another dealer. He said he had to go by what the field rep told me, BUT, that another dealer may have had experience with the groan and may be able to fix it. That was when I bit the bullet and drove out to the dealer who sold me the H3 (over an hour away). It was THAT dealer who told me about a warped rotor and cut the pads on an angle. Can you go to another dealer?? It would be worth it now.

[fourfourto]

Hmmm...I guess if I dont figure things out i could try another dealer .
there are only 2 others on long island and ones a caddy /hummer dealer that does'nt have to many hummers.
I might give the other one a call ,it couldnt hurt.

I could pop in a dealer when in fla the end of febuary .

Crash...As far as ceramic pads I will reserch it first(I do off road as much as posible nothing to crazy though),theres always other aftermarket pads I could try.
Im not to that point and Im reluctant to change over brakes till after 50,000 miles.

[fourfourto]

Hmmm3
Do you know if your dealer shaved the front pads also.
I was only planing doing the back.
Im not going to look at it untill Jan 27th(I have full use of my brothers shop at that time:D )

[Hmmm2]

Fourfourto, I don't know for sure. I'm about 98% sure that they did all pads with a triangle cut. I had asked him what he did differently on the day I picked up my H3 .. he said he had cut them in a diamond/triangle shape and had felt that would make a difference for braking downhill and stop the grind/groan. Here is what was writen on the invoice:

"Customer reports grinding noise from rear right wheel when braking, usually going downhill (agressive stops) after vehicle has been warmed up. Cause: Rotors warped and brake dust build-up between pad and rotor. H0043 Replace front and rear pads resurface front and rear rotors Chanfer front and rear clean brake assemblys. 699 WH
1 15240794 Pad Kit
1 15240812 pad Kit"

What is Chanfer?? (LOL) Is it a typo and a mechanical term? :p

[Crash ?]

"Customer reports grinding noise from rear right wheel when braking, usually going downhill (agressive stops) after vehicle has been warmed up. Cause: Rotors warped and brake dust build-up between pad and rotor. H0043 Replace front and rear pads resurface front and rear rotors Chanfer front and rear clean brake assemblys. 699 WH
1 15240794 Pad Kit
1 15240812 pad Kit"

What is Chanfer?? (LOL) Is it a typo and a mechanical term? :p

Chanfer is a technical term that means your mechanic, while he may be a good mechanic, probably flunked english class in high school.. The word he was looking for is CHAMFER with an M.. Which means "to cut a beveled edge" on the pads..

Rob

[fourfourto]

Hmmm3 It looks like they did the front and back on yours .:clapping:
I guess Ill do both,I am not turning down(cutting)the rotors .I dont think the rotors are warped
They only did the back on mine 11,000 miles ago and pads were not shaved.
We will see if it works in a couple weeks. GRrrr Grrrr grrr




Gm sucks :twak:

[Hmmm2]

Chanfer is a technical term that means your mechanic, while he may be a good mechanic, probably flunked english class in high school.. The word he was looking for is CHAMFER with an M.. Which means "to cut a beveled edge" on the pads..

Rob

Thanks Rob. I had NO idea what CHANFER meant. Now the next time I need pads, I can walk into the service area of my dealership with a swagger and tell then to be SURE to CHAMFER my pads! :dancingbanana:

[fourfourto]

Thanks Rob. I had NO idea what CHANFER meant. Now the next time I need pads, I can walk into the service area of my dealership with a swagger and tell then to be SURE to CHAMFER my pads! :dancingbanana:


Dealer pads I here are big bucks,I beleve there are aftermarket pads that come already chamferd (shaved/beveled)

[fourfourto]

Update:
I rotated the tires today,poped off rear brakes and noticed they had shims and were already chamber cut(no pic I forgot).I noticed the front are not.
I dont know if the dealer did it when they replaced them or the rears come that way?.
My brother and I beleve they are factory cut.(no pic I forgot)
He said if they were cut by the dealer they wouldnt be that perfect.(we also looked at the cut on a new set off pads for a dodge truck)

Anyway left the front alone because noise is clearly in the back.
Used disk brake lube under and over the shims and on the side metal clips.

Result is that it seems to not make the noise but there is a little noise at the end of a hard brake(could be suspention noise its below freezing here?)

I will see how it is over the week but the long ratcheting groan seems to be gone.I think im getting very sensitive to noises.
Could it be so simple a little lube did the trick .

We also tryed to isolate the ebrake cable/spring at rotor(pic below) if you wiggle it it makes a simular sound that im getting.It didnt make a difference though.

Pic below

[Hmmm2]

Could it really be that your lube took care of your ongoing problem. You have to wonder why the dealer couldn't have done that?! :twak: Your dealer must have chamfered your rear pads the first time you took it in with the problem. The dealer who did that to mine (which I think fixed my problem) told me he did it (chamfer) because it would help keep the groan/grind away since I brake so much on windy, hilly roads. I don't think he would have explained it to me if my pads were already cut that way.

Anyways ...:beerchug: fourfourto, for getting to the bottom of your problem and fixing it. I hope you've heard your final groan/grind. If possible, try not to make aggressive stops .. ease into it as best you can. Good luck! Keep us updated if the groan starts up again.

[fourfourto]

Just took a ride up to blockbuster and no noise.:shhh: silence is nice
Either the 3 is messin with me or it solved it ...for now.
I do here a faint "Ill be back":giggling:

The real test is if my wife hears it during the week.

F5/ parts guy
Anyone:grouphug: know if the rear pads are cut,they really looked factory cut I dont think I could have had them that even if I tried.
They might be factory replacement,that would explain why the fronts are not done.

[Hmmm2]

Either the 3 is messin with me or it solved it ...for now.
I do here a faint "Ill be back":giggling:



LOL .. I know EXACTLY what you mean! I was SURE that I would hear the groan at the next stop! I'd cringe as I rolled to a stop and waited for the sound. I'm only now beginning to accept in my mind that it may be gone. I DID hear it once, but I wasn't driving it .. I was the passenger. No one drives it as well as I do. :giggling:

[fourfourto]

Update:

After 3,500 mile round trip to FLA there is still no brake noise .:dancingbanana:

I guess the brake lube did the trick:jump:

Dealer had it in at least 4 times and couldnt figure it out:twak:

Less then 1/2 hour on the lift with my brother and I and the noise is gone.http://www.elcovaforums.com/forums/images/icons/icon14.gif

[Hmmm2]

Update:

After 3,500 mile round trip to FLA there is still no brake noise .:dancingbanana:

I guess the brake lube did the trick:jump:

Dealer had it in at least 4 times and couldnt figure it out:twak:

Less then 1/2 hour on the lift with my brother and I and the noise is gone.http://www.elcovaforums.com/forums/images/icons/icon14.gif

That is GREAT news! Did you only lube the brakes? Did you chamfer new pads, or did you leave the old pads in? Isn't that amazing ... all of that grief and the dealer couldn't find it? :twak: I'm glad you're groan-free now! (:shhh:) :giggling:

[fourfourto]

All I did was clean and add lube.the replacements were either chamfered or the dealer did it.The fronts were not and they were original.
The noise WAS:shhh: definatly comming from the back.

I will mention:twak: :D :giggling: it to the dealer:OWNED: when I go in for another roofrail replacement.

[wpage]

442,
Write a letter to GM's CEO they may help!:beerchug:

[fourfourto]

442,
Write a letter to GM's CEO they may help!:beerchug:

Do you think it will ever get to the CEO's hands ?
I dont know how it will help as I figured out what was wrong.
Putting a little lube on the shims is very easy,I dont know why the dealer didnt try it ?.


If you need something done right ,you have to do it yourself.:beerchug:

[MarK M]

wow, heard this exact noise you all mention this weekend. i slammed on my brakes because some prick cutting me off and I heard the noise.

was going to take my H3 in to have them look at it, but thought i'd search and see if its a common issue on the boards. seems that a lot of you guys get this noise. is it really normal? i'm afraid of taking my H3 in and they tell me the same thing, in that its normal.

i dont recall my H3 doing this before and i've slammed on the brakes a few times before. do most of you just live with it?

[RubHer Yellow Ducky]

wow, heard this exact noise you all mention this weekend. i slammed on my brakes because some prick cutting me off and I heard the noise.

was going to take my H3 in to have them look at it, but thought i'd search and see if its a common issue on the boards. seems that a lot of you guys get this noise. is it really normal? i'm afraid of taking my H3 in and they tell me the same thing, in that its normal.

i dont recall my H3 doing this before and i've slammed on the brakes a few times before. do most of you just live with it?

NO ! It is not normal. The lit talks about colour, mpg, torque, load, accessories, etc, NOTHING ABOUT BRAKE SQUEAL

[Hmmm2]

wow, heard this exact noise you all mention this weekend. i slammed on my brakes because some prick cutting me off and I heard the noise.

was going to take my H3 in to have them look at it, but thought I:D 'd search and see if its a common issue on the boards. seems that a lot of you guys get this noise. is it really normal? i'm afraid of taking my H3 in and they tell me the same thing, in that its normal.

i dont recall my H3 doing this before and i've slammed on the brakes a few times before. do most of you just live with it?

No, it's not normal. One of us had a problem with the tranasfer case (f5fstop) and a few of us with the brake pads. Fourfourto and I had the rear pads chamfered and it took care of the problem. Good luck! Let us know what happens. :D

[fourfourto]

Mark make sure they put disk brake lube on the shims also.
Hmmm Im still quiet :clapping:
4000 miles+
:shhh:
The dealer did use disk brake quiet spray and you could see were it was rubbing or vibrating,hopefully the lube last longer.
I think at the next tire rotation I will relube even if noise doesn't come back by then..

[MarK M]

cool, thanks guys!

I'll take the H3 in to have them look at it.

[Hmmm2]

Mark make sure they put disk brake lube on the shims also.
Hmmm Im still quiet :clapping:
4000 miles+
:shhh:
The dealer did use disk brake quiet spray and you could see were it was rubbing or vibrating,hopefully the lube last longer.
I think at the next tire rotation I will relube even if noise doesn't come back by then..

Sounds good to me! :clapping: I've been quiet, too! :shhh: