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Go Back   Hummer Forums by Elcova > Hummer H3 Discussion Forums > Technical Discussion and Customizing your H3

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  #21  
Old 10-15-2006, 03:40 AM
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Default Re: Rear Brake/Axle Groan...

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. They gave me a new one.)
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  #22  
Old 10-15-2006, 03:42 AM
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Default Re: Rear Brake/Axle Groan...

By the way, nice rig!!! Great backdrop ..nothing like the great East in the fall!
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  #23  
Old 10-15-2006, 03:46 AM
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Default Re: Rear Brake/Axle Groan...

Quote:
Originally Posted by Hmmm3
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. 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


Took video 1/2 mile from my house on the north shore at calahans beach.
Thats connecticut across the LI sound.
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Last edited by fourfourto : 10-15-2006 at 03:51 AM.
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  #24  
Old 10-15-2006, 03:59 AM
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Default Re: Rear Brake/Axle Groan...

Quote:
Originally Posted by H3PAC
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.
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  #25  
Old 10-15-2006, 01:52 PM
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Default Re: Rear Brake/Axle Groan...

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...
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  #26  
Old 10-15-2006, 03:11 PM
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Default Re: Rear Brake/Axle Groan...

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?
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Last edited by fourfourto : 10-15-2006 at 03:14 PM.
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  #27  
Old 10-15-2006, 03:28 PM
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Default Re: Rear Brake/Axle Groan...

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.
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  #28  
Old 10-15-2006, 03:42 PM
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Default Re: Rear Brake/Axle Groan...

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.

Hmmm3 when are you bringing it in
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Last edited by fourfourto : 10-15-2006 at 03:44 PM.
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  #29  
Old 10-15-2006, 05:48 PM
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Default Re: Rear Brake/Axle Groan...

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. 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#?
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  #30  
Old 10-15-2006, 05:59 PM
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Default Re: Rear Brake/Axle Groan...

Quote:
Originally Posted by fourfourto
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. ()
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  #31  
Old 10-15-2006, 09:12 PM
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Default Re: Rear Brake/Axle Groan...

Quote:
Originally Posted by Hmmm3
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. ()

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

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.
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  #32  
Old 10-15-2006, 09:28 PM
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Default Re: Rear Brake/Axle Groan...

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.
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  #33  
Old 10-15-2006, 11:35 PM
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Default Re: Rear Brake/Axle Groan...

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.
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  #34  
Old 10-16-2006, 12:43 AM
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Default Re: Rear Brake/Axle Groan...

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.


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

Its stuck in my freekin head
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  #35  
Old 10-16-2006, 01:18 AM
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Default Re: Rear Brake/Axle Groan...

Quote:
Originally Posted by 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.

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.
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  #36  
Old 10-16-2006, 01:20 AM
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Default Re: Rear Brake/Axle Groan...

Quote:
Originally Posted by 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.


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

Its stuck in my freekin head

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...
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  #37  
Old 10-16-2006, 03:54 AM
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Default Re: Rear Brake/Axle Groan...

Quote:
Originally Posted by fourfourto

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

Its stuck in my freekin head
I know exactly what you mean.
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  #38  
Old 10-17-2006, 12:24 AM
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Default Re: Rear Brake/Axle Groan...

Quote:
Originally Posted by f5fstop
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.

Thanks!
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  #39  
Old 10-17-2006, 12:29 AM
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Default Re: Rear Brake/Axle Groan...

Quote:
Originally Posted by Hmmm3
f5fstop ... the last digits of my vin# are:68111746.

Thanks!
06/22/2005

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

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.
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  #40  
Old 10-17-2006, 12:36 AM
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Default Re: Rear Brake/Axle Groan...

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
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