1994 Pontiac Firebird Knocking noise

Tiny
220BUSA4U
  • MEMBER
  • 1994 PONTIAC FIREBIRD
  • 6 CYL
  • 2WD
  • MANUAL
  • 168,000 MILES
When driving on somewhat rough pavement or hitting bumps in the road, the transmission and driveshaft shakes and knocks noisely. If driving on smooth pavement, car rides smooth. What could be the cause?
Friday, February 15th, 2008 AT 11:30 AM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Check the engine and transmission mounts. You will most likly find the on on the back of the tranny is split.
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Friday, February 15th, 2008 AT 11:31 AM

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