REAR SUSPENSION SPRING CLUNK INSTALL LWR. SPRING INSULATOR. Buick Coachbuilder 1991

For 1990-2009 cars

# REAR SUSPENSION SPRING CLUNK INSTALL LWR. SPRING INSULATOR

#### SUBJECT: REAR SUSPENSION SPRING CLUNK (INSTALL SPRING LOWER INSULATORS)

#### VEHICLES AFFECTED: 1991 "B" CAR STATION WAGONS

#### Condition:

---------- Some 1991 B-car station wagons assembled prior to VIN breakpoints indicated below may exhibit a clunking type noise from the rear of the vehicle when being operated over irregular road surfaces.

#### VIN Breakpoints

Chevrolet MW261909 Oldsmobile MW307376 Buick MW406956

#### 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.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.