Malibu V6-191 3.1L VIN M SFI (1997)
Vacuum Brake Booster: Customer Interest
Brakes - Squeak/Squawk Type Noise When Pedal Depressed
File In Section: 5 - Brakes
Bulletin No.: 83-50-23
Date: October, 1998
Subject:
Squeak/Squawk Type Noise when Brake Pedal Depressed
(Replace Vacuum Brake Booster)
Models:
1997-98 Chevrolet Malibu
1997-98 Oldsmobile Cutlass
1999 Oldsmobile Alero
1999 Pontiac Grand Am
Built Prior to the VIN Breakpoint:
Condition
Some customers may comment about a squeak or squawk type noise coming from under the dash area when the brakes are applied.
Cause
This condition may be the result of the composition/formulation of the material utilized in the manufacturing of the rear seal of the vacuum brake
booster.
Correction
Replace existing vacuum brake booster with a new assembly selected from those listed below by vehicle make and model. Follow service procedure in
the applicable Service Manual.
Parts Information
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
H1220
Booster Assembly, Vacuum
1.2 hrs
Power Brake - Replace
