Caprice Wagon RWD V8-305 5.0L (1991)
Coil Spring Insulator: All Technical Service Bulletins
Suspension (Rear) - Clunking Noise
Number: 91-422-3D
Section: 3D
Date: SEPT. 1991
Corporate Bulletin No.: 133404
ASE No.: A4
Subject:
REAR SUSPENSION SPRING CLUNK
Model and Year:
1991 CAPRICE STATION WAGON
Condition:
Some 1991 B-car station wagons assembled prior to VIN breakpoint indicated below may exhibit a clunking type noise from the rear of
the vehicle when being operated over irregular road surfaces.
VIN Breakpoint
MW261909
Cause:
Rear coil spring movement on rear axle assembly spring seats.
Correction:
Install rear spring lower insulators, P/N 10004110 (2 required/vehicle) at the spring to axle assembly spring seat interface following
applicable Service Manual procedures.
Part is currently available from GMSPO.
Labor Operation Number:
E5057
Use applicable labor time guide for labor hours.
