Transaxle Mount - Chirping Noise

91pontiac14

Bulletin Number: 91-7-39
Reference Number: 137106
Publish Date: 11/91


Subject: TRANSAXLE MOUNT CHIRPS (REPLACE TRANSAXLE MOUNT BUMPER WITH NEW BUMPER)

Models
Affected: 1990-91 SUNBIRD AND GRAND AM MODELS W/2.0L, 2.5L AND 3.1L


Condition: Chirping noise in engine compartment.

Cause: Transaxle mount bumper rubs against mount.

Correction: Replace transaxle mount bumper with new bumper. Refer to "Parts Information" for vehicle application and updated part number.

IMPORTANT: Before transaxle mount bumper is replaced, be sure the bumper is the source of the noise. Coat the bumper with a silicone base grease and test drive vehicle. If noise is no longer evident, replace the bumper.

1. Remove transaxle mount from the vehicle. Refer to appropriate Service Manual and Section for procedure.

Figure 1 - Mount in Vise:

2. Place the mount in a vise. Refer to Figure 1.

Figure 2 - Removing the Bumper:

3. Remove bumper retaining nuts (if not removed during transaxle mount removal).
4. Remove bumper. Lift up on the inner mount assembly until the bumper can be removed. Refer to Figure 2.


5. Install new bumper by lifting up on inner mount assembly.
6. Install bumper retaining nuts.
7. Remove mount from vise.
8. Install transaxle mount in the vehicle.






Parts Information:


Parts are currently available from GMSPO.

Labor Operation Number: T1790
Labor Time .8 Hour for 4 cylinder engines with
Automatic or Manual Transmission

1.0 Hour for 6 cylinder engines with Automatic or Manual Transmission

Trouble Code : 92