Rear Brake/Axle Groan...

[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 )

[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?

[Crash ?]

Originally Posted by Hmmm3

"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?

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 .
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

[Hmmm2]

Originally Posted by Crash ?

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!

[fourfourto]

Originally Posted by Hmmm3

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!

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