Malibu V6-3.1L VIN J (2002)
Brake Caliper: All Technical Service Bulletins
Brakes - Creaking Noise On Slow Speed Braking
File In Section: 05 - Brakes
Bulletin No.: 04-05-23-004
Date: September, 2004
TECHNICAL
Subject:
Brake Noise/Creak During Slow Speed Braking (Lubricate Brake Caliper)
Models:
1999-2003 Chevrolet Malibu
2004 Chevrolet Malibu Classic
1999-2004 Oldsmobile Alero
1999-2004 Pontiac Grand Am
Condition
Some customers may comment on a creak type noise occurring when applying the brakes. It is usually heard only during slow speed brake maneuvers. If
this condition exists, it should be able to be duplicated when the vehicle is not moving by depressing the brake and listening for the noise from the
wheel-well/caliper area.
Cause
This condition may be caused by a caliper piston to seal interface issue during brake apply. If the caliper is removed and the piston is pushed back, the
noise may be eliminated. This is usually only a temporary fix.
Correction
DO NOT REPLACE CALIPER.
To repair this condition, lubricate the entire circumference of the seal at the caliper piston interface using kluber Fluid and the following procedure:
1.
Remove the wheel and reinstall two lug nuts. This will hold the rotor to the bearing surface so debris does not fall between the surfaces and cause
lateral runout (LRO).
2.
Remove the bottom bolt from the caliper assembly without disturbing the hydraulic system.
3.
Swing the caliper assembly up so the caliper assembly is facing upward.
4.
Thoroughly clean the piston boot with GM approved Brake Clean. Pay particular attention to the area where the boot interfaces with the piston.
5.
Using compressed air, dry the piston/boot area.
