For 1990-2009 cars

# REAR BRAKE NOISE (REPL. BROKEN PARK BRK. SPRING W/NEW KIT)

#### SUBJECT: REAR BRAKE NOISE (REPLACE BROKEN PARK BRAKE SPRING WITH NEW SERVICE KIT)

#### VEHICLES AFFECTED: 1992 "CM" MODELS AND "U" VAN

#### APPLICATION:

----------- 1992 "U" Vans.

1992 "C" and "H" vehicles within the following VIN Ranges:

PLANT VEHICLE FROM TO ----- ------- ---- -- BUICK CITY OLDSMOBILE "H" NH331920 NH351783 BUICK CITY BUICK "H" NH424927 NH467512 ORION CADILLAC "C" N4224271 N4264779 ORION OLDSMOBILE "C" N4309434 N4325692 WENTZVILLE BUICK "C" N1611664 N1628656 WENTZVILLE PONTIAC "H" N1233188 N1262769 WENTZVILLE OLDSMOBILE "H"' N1805788 N1815018

#### CONDITION:

--------- Noise in rear brake, increased pedal travel over time, or one wheel slides.

#### CAUSE:

----- Rear parking brake adjuster spring breaks at either attaching point.

#### CORRECTION:

---------- Install new service spring kit. This kit includes springs, actuators, and instructions for both rear brakes. Replace both sides at the same time, even if only one is broken.

#### PART INFORMATION:

"C and H" Part Number: 18020401

"U" Part Number: 18020402

#### WARRANTY INFORMATION:

For vehicles repaired under warranty use:

Labour Operation: H0347

Labour Operation: H0297 (Cadillac only)

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.