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Clunking noise

(1999 GMC Yukon Denali)
in Pawtucket, RI on March 16, 2009
when i am coming to a stop i hear a clunk and when i accelerate i hear a clunking noise i also changed the shocks and rear u joint can you please tell me what causes this
Displaying 7 answers & 2 comments
Popular Answer
on October 09, 2010
you need to lubricate the spline on the drive shaft yoke that slips into the transmission,it is dry and will cause this
on March 17, 2009
Does this help?
Information on 2-3 Upshift or 3-2 Downshift Clunk Noise. Some vehicles may exhibit a clunk noise that can be heard on a 2-3 upshift or a 3-2 downshift.

During a 2-3 upshift, the 2-4 band is released and the 3-4 clutch is applied. The timing of this shift can cause a momentary torque reversal of the output shaft that results in a clunk noise. This same torque reversal can also occur on a 3-2 downshift when the 3-4 clutch is released and the 2-4 band applied. This condition may be worse on a 4-wheel drive vehicle due to the additional tolerances in the transfer case.

This is a normal condition. No repairs should be attempted.

on April 25, 2010
front cv joints loosened. replaced mine and fixed.
on February 25, 2011
did your 4x4 make this noise in the front before you changed your cv joionts
on December 07, 2010
A broken motor mount would cause this, I have a 2007 Denali and it had broke a motor mount already, it took the dealership 3 tries to find the issue, I had to point it out to them.
on January 31, 2011
By chance did the dealership fix it for free or did you have to pay for it. I feel like a motor mount shouldn't go bad that fast on a 2007 Denali and I just had the same problem. Trying to get them to fix it at no cost.
on May 15, 2010
when i take off i here my brake drums on the left side making crazy noises like its sticking.
on December 10, 2015
I have same problem.. it is the torsion bars the plastic mounts on them deteriorate after time and they are the culprit of the noise. guarantee it!
on October 12, 2010
check hub barron
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