Skylark V6-191 3.1L VIN M SFI (1994)
Clutch: All Technical Service Bulletins
A/T - Second Gear Vibration, 40-55 MPH
Group Ref.: Transmission
Bulletin No.: 377135A
Date: March, 1994
SUBJECT:
SECOND GEAR VIBRATION BETWEEN 40-55 MPH - MEDIUM TO HEAVY THROTTLE (REPLACE FOURTH CLUTCH HUB AND SHAFT
ASSEMBLY)
MODELS:
1994 BUICK SKYLARK
1994 CHEVROLET BERETTA AND CORSICA
1994 OLDSMOBILE ACHIEVA
1994 PONTIAC GRAND AM EQUIPPED WITH 3.1L ENGINE (VIN M - RPO L82)
TRANSAXLE APPLICATIONS:
HYDRA-MATIC 4T60-E (RPO M13) (BUILT ON OR BEFORE SEPTEMBER 24, 1993, JULIAN DATE 264)
TRANSAXLE MODELS:
4WBW, 4WSW
THIS BULLETIN IS BEING REVISED TO CHANGE THE REPAIR COMPONENT NAME AND WARRANTY INFORMATION. PLEASE
DISCARD BULLETIN 377135.
CONDITION:
(Figure 1) Some owners may experience a transaxle vibration while in second gear between 40-55 mph, (medium to heavy throttle). This vibration will
be more noticeable at higher engine speeds, for example during a 4-2 downshift.
