Brake System Noise
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Brake System Noise Diagnostic Test
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Were you sent here from the Hydraulic Brake Symptom table? | Go to Step 2 | Go to Diagnostic Starting Point - Hydraulic Brakes |
| 2 | Inspect the disc brake system for proper operation. Refer to Disc Brake System Diagnosis . Did you find and correct a condition? |
Go to Step 9 | Go to Step 3 |
| 3 | Inspect the brake assist system for proper operation. Refer to Brake Assist System Diagnosis . Did you find and correct a condition? |
Go to Step 9 | Go to Step 4 |
| 4 | Inspect the hydraulic brake system for proper operation. Refer to Hydraulic Brake System Diagnosis . Did you find and correct a condition? |
Go to Step 9 | Go to Step 5 |
| 5 | Is the vehicle equipped with a drum-in-rotor type of park brake system? | Go to Step 6 | Go to Step 8 |
| 6 | Ensure the park brake shoes are not adjusted too tightly, possibly causing a noise under certain conditions. Are the park brake shoes adjusted too tightly? |
Go to Step 7 | Go to Step 8 |
| 7 |
|
Go to Step 9 | Go to Step 8 |
| 8 | Inspect the park brake system for proper operation. Refer to Park Brake System Diagnosis
in Park Brake. Did you find and correct a condition? |
Go to Step 9 | Go to Diagnostic Starting Point - Hydraulic Brakes |
| 9 | Road test the vehicle in order to confirm proper operation. Refer to Brake System Vehicle Road Test . Is the condition still present? |
Go to Step 2 | System OK |