Front Brake Moan and/or Groan Noise During Brake Apply (Replace Front Brake Pads)
| Subject: | Front Brake Moan and/or Groan Noise During Brake Apply (Replace Front Brake Pads) |
| Models: | 2005 Buick Allure (Canada Only), LaCrosse |
| 2005 Pontiac Grand Prix (Excluding GXP Models) |
| Built prior to 4/1/05 |
Condition
Some customers may comment that they hear a moan and/or groan noise during brake apply, usually below speeds of 48 km/h (30 mph). The noise may only be noticed after multiple brake applications.
Cause
After approximately 1600 km (1000 miles) and multiple brake applications, a film may build up on the front rotor surface, possibly resulting in a moan and/or groan noise. The noise will only be present after the rotors have began to warm up.
Correction
DO THIS | DON'T DO THIS |
|---|---|
Confirm the noise is coming from the front brakes, then replace the front brake pads with GM P/N 19121389 | DO NOT resurface the front rotors. DO NOT replace the front pads with GM P/N 88964099 |
- Road test the vehicle and confirm that the noise is coming from the front brakes.
- Replace the front brake pads. Refer to Brake Pads Replacement - Front (J65, JL9) (SI Document ID# 913525).
- Road test and burnish the pads and rotors. Refer to Burnishing Pads and Rotors (SI Document ID# 913539).
Important: The new chamfered double vertical cut brake pads, P/N 19121389, will continuously clean the rotor surface of film build up. It is not necessary or recommended to resurface the front rotors for this condition.
Parts Information
Part Number | Description |
|---|---|
19121389 | Pad Kit, Frt Disc Brk |
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
H0042 | Pads, Disc Brake - Front - R&R or Replace | Use Published Labor Operation Time |
