| DISC BRAKE CHIRP |
1. Excessive brake rotor runout. |
1. Refer to BRAKE ROTOR
- diagnosis and testing. Correct as necessary. |
| DISC BRAKE RATTLE OR CLUNK |
1. Broken or missing spring clips. |
1. Replace brake shoes. |
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2. Caliper guide pin bolts loose. |
2. Tighten guide pin bolts. |
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3. Missing abutment shims. |
3. Replace missing abutment shims. |
| DISC BRAKE SQUEAK AT LOW SPEED (WHILE APPLYING LIGHT BRAKE PEDAL EFFORT) |
1. Brake shoe linings. |
1. Replace brake shoes. |
| DRUM BRAKE CHIRP |
1. Lack of lubricant on brake shoe support plate where shoes ride. |
1. Lubricate shoe contact areas on brake shoe support plates. |
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2. Wheel cylinder out of alignment. |
2. Loosen wheel cylinder mounting bolts, realign wheel cylinder with brake shoes and tighten mounting bolts. |
| DRUM BRAKE CLUNK |
1. Drum(s) have threaded machined braking surface. |
1. Reface or replace drake drums as necessary. |
| DRUM BRAKE HOWL OR MOAN |
1. Lack of lubricant on brake shoe support plate where shoes ride and at the anchor. |
1. Lubricate shoe contact areas on brake shoe support plates and at the anchor. |
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2. Rear brake shoes. |
2. Replace rear brake shoes. |
| SCRAPING (METAL-TO-METAL). |
1. Foreign object interference with brakes. |
1. Inspect brakes and remove foreign object. |
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2. Brake shoes worn out. |
2. Replace brake shoes. Inspect rotors and drums. Reface or replace as necessary. |
| SCRAPING OR WHIRRING |
1. ABS wheel speed sensor hitting tone wheel. |
1. Inspect, correct or replace faulty component(s). |