Vibration

Tiny
JOLDBURY
  • MEMBER
  • 2003 CHEVROLET TAHOE
  • 180,000 MILES
I have a 2003 4wd tahoe. While driving, it makes loud vibrations underneath and when I step on the gas it makes a loud knocking noise. What could that be?
Thursday, January 13th, 2011 AT 6:01 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Check u-joints. Also, make sure the input and output bearings in the differential and transmission are tight and don't have excessive play. Finally, make sure the differential is full and clean.
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Friday, January 28th, 2011 AT 4:22 AM

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