1994 Pontiac Firebird Knocking noise

1994 PONTIAC FIREBIRD
168,000 MILES • 6 CYL • 2WD • MANUAL
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220BUSA4U
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  • 1 POST
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??
Feb 15, 2008 at 11:30 AM
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MERLIN2021
  • ✓ASE Certified Mechanic
  • 17,250 POSTS
  • ASE Certified Mechanic
Check the engine and transmission mounts. You will most likly find the on on the back of the tranny is split.
Feb 15, 2008 at 11:31 AM
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