GM Service Manual Online
For 1990-2009 cars only

Transmission Clunk on Acceleration or Deceleration for Pontiac Firefly (Canada) 2000

Condition

Possible Cause

The vehicle clunks on acceleration or on deceleration.

    • Worn or loose engine mounts
    • Worn pinion shaft or excessive side gear splines backlash in the differential assembly
    • Worn or damaged drive axle inboard joints