Brakes - Rear Squawk Noise & Low Speed ABS Cycling

Group Ref.: 5 - Brakes

Bulletin No.: 235015

Date: July, 1994

SUBJECT:
REAR BRAKE SQUAWK AND LOW SPEED ABS CYCLING WHEN COMING TO A COMPLETE STOP
(REPLACE REAR BRAKE LININGS/DRUMS)

MODELS:
1992-93 BUICK SKYLARK
1992-93 CHEVROLET CAVALIER AND CORSICA/BERETTA
1992-93 OLDSMOBILE ACHIEVA
1992-93 PONTIAC GRAND AM AND SUNBIRD

THIS BULLETIN IS BEING REVISED TO UPDATE THE CORRECTION PROCEDURE AND WARRANTY INFORMATION. PLEASE DISCARD PREVIOUS DIVISIONAL PUBLICATION NUMBERS LISTED BELOW:

DIVISION BULLETIN NUMBER

BUICK 93-5-3

CHEVROLET 93-65-5

GM OF CANADA 93-5-105

OLDSMOBILE 93-T-29

PONTIAC 93-5-5

CONDITION:

Some owners may comment on a low speed ABS cycling and a squawk from the rear brakes when coming to a complete stop. If this condition exists, some vehicles may exhibit chafed or cracked brake linings.

CAUSE:

Heavy duty brake cycling may create added heat which could result in some deterioration of the brake linings. This deterioration may polish the drums and increase the symptoms of this condition.

CORRECTION:
Vehicles that experience any or all of the above conditions should replace the rear brake linings with current production P/N 12321412, service brake lining. Also, the rear drums will need to be replaced with P/N 18020612 which has been released for 1994 and 1995 current production.

Parts are currently available from GMSPO.

WARRANTY INFORMATION:
For vehicles repaired under warranty, use:

Labor Operation Labor Time

H0257 Use published labor time