More problems
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More problems - 10/17/2007 6:15:23 PM
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Nick119
Posts: 62
Joined: 6/28/2007
Status: offline
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Well first the good thing, I got my steering shaft replaced and it seems no more problems or front-end rattle with that. I also got my 3,000 mile oil change. Now it seems that when im slowing down and i get down to a very low speed i hear this I guess grinding type noise in the back when im brakeing. Like if I brake when I'm going 60mph I won't hear it until im down below 15-20. It's really weird and it's only in the rear of the car. I've been to the dealer 2 consecutive weeks now, and quite frustrated because the car is brand new only 3400 miles on it. I'm just tired of goign back and forth to the dealer. Anyone else having similar problems?
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RE: More problems - 10/17/2007 6:37:52 PM
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hilljob26
Posts: 2069
Joined: 9/2/2007
Status: offline
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i wonder if a shoe isnt hangin up,like a bad wheel cylinder,they can be bad,even new ones
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dont sweat the petty stuff,pet the sweaty stuff
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RE: More problems - 10/17/2007 7:16:05 PM
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Doc Olds
Posts: 3811
Joined: 7/11/2007
From: Boat Town USA (Michigan 48045)
Status: offline
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Nick: try reading this thread H3 brakes problem and this link posted by a member here f5fstop at another forum, he knows his stuff.
Brakes Grunt, Groan, in Rear
Subject: Brakes Grunt, Groan, Grinding Noise from Rear When Vehicle Comes to a Stop (Refinish Rear Rotors) #07-05-23-004 - (09/26/2007)
Models: 2006-2008 HUMMER H3
Condition
Some customers may comment on a grunt, groan or grinding noise coming from the rear of the vehicle when coming to a stop.
Cause
Rotor corrosion generates a slip-stick condition transferring vibration through the suspension.
REPLACE THE ROTORS ONLY IF THE ROTOR THICKNESS IS BELOW THE MINIMUM THICKNESS SPEC AFTER REFINISH.
Correction
Refinish the rear rotors by removing 0.4 mm from both rear rotor surfaces.
Do not replace the brake pads unless the condition requires it (i.e. excessively worn, damaged, or contaminated).
If the noise persists, a brake dampening compound may be applied to the back of each pad. This allows parts to slide freely and not vibrate when moving relative to each other.
Print this and take it with ya to your dealership and show them the GM Service Bulletin number in bold above (TSB#), tell em Doc sent ya. 
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RE: More problems - 10/18/2007 3:02:41 AM
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D VADER
Posts: 1198
Joined: 5/21/2007
Status: offline
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quote:
ORIGINAL: Doc Olds
Nick: try reading this thread H3 brakes problem and this link posted by a member here f5fstop at another forum, he knows his stuff.
Brakes Grunt, Groan, in Rear
Subject: Brakes Grunt, Groan, Grinding Noise from Rear When Vehicle Comes to a Stop (Refinish Rear Rotors) #07-05-23-004 - (09/26/2007)
Models: 2006-2008 HUMMER H3
Condition
Some customers may comment on a grunt, groan or grinding noise coming from the rear of the vehicle when coming to a stop.
Cause
Rotor corrosion generates a slip-stick condition transferring vibration through the suspension.
REPLACE THE ROTORS ONLY IF THE ROTOR THICKNESS IS BELOW THE MINIMUM THICKNESS SPEC AFTER REFINISH.
Correction
Refinish the rear rotors by removing 0.4 mm from both rear rotor surfaces.
Do not replace the brake pads unless the condition requires it (i.e. excessively worn, damaged, or contaminated).
If the noise persists, a brake dampening compound may be applied to the back of each pad. This allows parts to slide freely and not vibrate when moving relative to each other.
Print this and take it with ya to your dealership and show them the GM Service Bulletin number in bold above (TSB#), tell em Doc sent ya.
Where did you find that info Doc? Sounds like a good source.
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2007 H3X w/lux pkg, black on black, Starship from the "Dark Side"
Central Ohio
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RE: More problems - 10/18/2007 3:13:39 AM
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hilljob26
Posts: 2069
Joined: 9/2/2007
Status: offline
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wow,thats some good info
_____________________________
dont sweat the petty stuff,pet the sweaty stuff
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RE: More problems - 10/18/2007 3:17:22 AM
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D VADER
Posts: 1198
Joined: 5/21/2007
Status: offline
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I re-read that Doc..how do you apply anything to the "back" of a pad?
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2007 H3X w/lux pkg, black on black, Starship from the "Dark Side"
Central Ohio
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RE: More problems - 10/18/2007 5:06:59 AM
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HUMMER DRIVER
Posts: 447
Joined: 3/12/2007
Status: offline
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That's why they call him DOC! Bravo Doc! Great info.
Has anyone bought the aftermarket drilled rotors for their Hummer, I'm seeing them more and more on ebay and other places. Personally I think the H3 brakes are pretty good. The H3 is heavy and my brakes work great. I rent a lot of cars/SUVs while traveling and some brakes are either too sensitive or weak, the Hummer feels just right and really brings my big ole truck to a dead stop when I need it. Touch wood, no problems with mine so far and I've got 14K miles on mine.
Years ago I had a Grand Cherokee and it had the worst rotors, must have been Chrysler made, I had them turned twice before 40K miles and then at 60K I had to replace them. The next year Jeep offered a recall on those rotors because they warped and wore unevenly and you get that hard bumping when hitting the brakes.
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2007 H3 Black/Chrome Package , SS Nerf Bars, Roof Rack, MagnaFlow, Towing Kit, HUMMER PinStriping. K&N , PCM , SS Brushguard, Backup Camera, 34" Trxus M/T & ProComp Rims.
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