Rear Transmission Mounts Commonly Fail on Pontiac Firebird

Failure of the rear transmission mounts is common.

RepairPal Verified
Average mileage: 178,740 (98,000–297,000)
Drive Trains affected: Automatic Transmission, Manual Transmission
13 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
21 people reported this problem
7 people shared problem details
1995 Pontiac Firebird- Automatic Transmission109,000
rear transmission mount failure,can be fixed by replacing with urthane mount.
1995 Pontiac Firebird- Automatic Transmission297,000
replaced mount with energy suspension mount. worked ever since.
1992 Pontiac Firebird- Manual Transmission98,000
my shifter recently started floating...can see it bobbing up and down while driving...not fixed
1996 Pontiac Firebird190,000
I have always had issues once I had exhaust redone w no cat. Power loss at times. Put on a simulator on 4th O2 sensor, new Throttle Position Sensor, replaced one of three coil packs, and only minor improvement was made. Had my mechanic look at it as well. He couldnt come up with an answer, and he is familiar with my car. No check engine light coming on either. Recently had him replace some coolant hoses, and he tells me he flushed the whole system, and that my tranny tailshaft mount was torn. Actually, it was in two pieces. Researched, read blogs, and installed a poly mount. WOW! I was so impressed. Tightened up the flex at that joint when higher rpm clutching, so no more clunking sound, and has seemed to make the power loss/bogging down, simply disappear. So to the next Firebird owner, save lots of time and money by looking at that solution first, saying you have similar problems I did.
Replaced the bushing while i put in a new clutch
1994 Pontiac Firebird- Manual Transmission138,000
just purchased car, had to replace throw out bearing - noticed rear trans mount wasted; apparently common problem ??!!??
1994 Pontiac Firebird- Automatic Transmission240,442
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