Front Brake Squeal (Install New Brake Rotors)
| Subject: | Front Brake Squeal (Install New Brake Rotors) |
| Models: | 1997-99 Chevrolet Malibu |
| 1997-99 Oldsmobile Cutlass |
This bulletin is being revised to update the service procedure, parts information and provide VIN breakpoints. Please discard Corporate Bulletin Number 99-05-23-001 (Section 5 -- Brakes)
Built Prior To VIN Breakpoints:
Model | VIN Breakpoint | Plant |
|---|---|---|
Chevrolet Malibu | X6138829 | Oklahoma City |
XY125606 | Wilmington | |
Oldsmobile Cutlass | X6312990 | Oklahoma City |
Condition
Some owners may comment about a squealing type noise coming from the front brakes during a brake application.
Cause
The squealing noise may be the result of a "slip/stick" condition between the front brake pads and rotors that could cause a high frequency vibration.
Correction
On vehicles built prior to the VIN breakpoints indicated, this condition can be minimized by replacing both front brake rotors with new "dampened iron" rotors, P/N 18060241. Refer to the Disc Brakes sub-section in the appropriate Service Manual.
On 1997 vehicles, the front brake pads should be inspected during rotor replacement to determine if insulators are present on the backside of the pads. If insulators are not present, the brake pads should be replaced with those contained in the front brake pad kit, P/N 18024383.
Important: Guidelines provided in Corporate Bulletin Number 23-50-05B must be followed to insure proper cleaning, lubricating and assembling of brake and related components.
Parts Information
Part Number | Description |
|---|---|
18024383 | Front Brake Pad Kit |
18060241 | Front Brake Rotor |
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
H0127 | Rotor Assembly - R&R or Replace | Use published labor operation time |
H0042 | Pads, Disc Brake - R&R or Replace |
