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10-09-2008, 06:43 AM
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Hummer Professional
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Join Date: Feb 2006
Posts: 368
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Clunk on Aceleration from a stop
Im hearing a clunk (non-driveline) in the front end when i accelerate just off a stop....
Brought it to hummer, they replaced a bad idler arm (Showed me on the lift....it was definatly bad) and a bad wheel bearing (Once again, showed me on the lift and it was wasted). So they did good replacing 2 parts, and the wheel bearing was REALLY bad....but still i have the clunk.
Anyone got this same clunk sound? Sounds like a stiff bushing sound or somthing to that effect.
--John
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2006 Hummer H2 Lux Series
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10-09-2008, 11:49 AM
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Hummer Authority
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Join Date: May 2006
Location: Texas
Posts: 1,132
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Re: Clunk on Aceleration from a stop
Yuppers. I get that sound also. New Idler and Pitman...and Cognito support. Had everything checked and aligned and all looks good. I'm wondering if it might be a noise from the brakes??? Don't know.
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10-09-2008, 07:46 PM
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Hummer Veteran
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Join Date: Mar 2008
Posts: 205
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Re: Clunk on Aceleration from a stop
If the clunk is on acceleration and braking then it sounds like hubs might be bad or as you have already fixed bearings. If the clunk is is when turing the wheels left or right and so forth then I would look into the steering components more. I have had both of these problems and I am curently in the process of re-doing the entire steering system. This including new pitman arm, new Idler arm idler support, pitman support and idler block, with new tierods to finish it off.The clunk sound on acceleration was fixed for me when I replaced the HUB.
thanks
B
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10-10-2008, 04:06 AM
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Hummer Authority
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Join Date: Sep 2005
Location: Texas
Posts: 1,795
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Re: Clunk on Aceleration from a stop
Remove skidplate to see if that's causing it
Also, check bolts on rear lower control arms.
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H2 SUT 4.56 Gears, Front Locker, Cognito Pitman/Idler kit & Idler Pivot Kit, Fab Tech Tie Rods, True Tech Trailing Arms, Edelbrock Panhard Rod, PML rear Diff & Tranny Pans, Corsa Exhaust, Dynatech LT Headers, Diablo Predator Programmer, Volant CAI, Warn 9500 Winch, Escort 8500x50 & ZR3 Laser Shifter, Delta Light Bar, Rancho Steering Stabilizer & Bilstein Shocks, Ron Davis Radiator, PowerSlot Rotors, Hawk Brake Pads
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10-16-2008, 03:28 PM
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Hummer Guru
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Join Date: Jan 2005
Location: Oregon
Posts: 4,321
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Re: Clunk on Aceleration from a stop
I had a cross membr bushing go bad. If I remember correctly, it was in the front.
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If it has tires or testicles, you're going to have trouble with it
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10-24-2008, 06:58 PM
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Hummer Professional
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Join Date: Feb 2003
Location: Palm Desert, CA
Posts: 470
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Re: Clunk on Aceleration from a stop
A broken motor mount can cause this sound also....
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