Problem Symptoms Table
Use the table below to help find the cause of each problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts.
PROBLEM SYMPTOMS
| Symptom | Suspected Area | See |
|---|---|---|
| Low pedal or spongy pedal | 1. Fluid leaks in the brake system | BRAKE FLUID |
| 2. Air in the brake system | See step 3 under BLEEDING | |
| 3. Piston seals are worn or damaged (for front) | See step 4 under DISASSEMBLY | |
| 4. Piston seals are worn or damaged (for rear) | See step 3 under DISASSEMBLY | |
| 5. Master cylinder is faulty | See step 3 under REMOVAL | |
| 6. Booster push rod clearance is out of adjustment | INSTALLATION | |
| Brake drag | 1. Brake pedal free play (Minimal) | See step 2 under ADJUSTMENT |
| 2. Parking brake lever travel clearance is out of adjustment | See step 5 under ADJUSTMENT | |
| 3. Parking brake cable is stuck | PARKING BRAKE CABLE | |
| 4. Parking brake shoe clearance is out of adjustment | See step 6 under DISASSEMBLY | |
| 5. Pad is cracked or distorted (for front) | INSPECTION | |
| 6. Pad is cracked or distorted (for rear) | INSPECTION | |
| 7. Piston is stuck (for front) | DISASSEMBLY | |
| 8. Piston is stuck (for rear) | REMOVAL | |
| 9. Piston is frozen (for front) | DISASSEMBLY | |
| 10. Piston is frozen (for rear) | REMOVAL | |
| 11. Booster push rod clearance is out of adjustment | INSTALLATION | |
| 12. Vacuum check valve | INSPECTION | |
| 13. Vacuum leaks in the booster system | ON-VEHICLE INSPECTION | |
| 14. Master cylinder is faulty | REMOVAL | |
| Brake pull | 1. Piston is stuck (for front) | DISASSEMBLY |
| 2. Piston is stuck (for rear) | REMOVAL | |
| 3. Pad is oily (for front) | INSPECTION | |
| 4. Pad is oily (for rear) | INSPECTION | |
| 5. Piston is frozen (for front) | DISASSEMBLY | |
| 6. Piston is frozen (for rear) | REMOVAL | |
| 7. Disc is scored (for front) | INSPECTION | |
| 8. Disc is scored (for rear) | INSPECTION | |
| 9. Pad is cracked or distorted (for front) | INSPECTION | |
| 10. Pad is cracked or distorted (for rear) | INSPECTION | |
| Hard pedal but brake inefficient | 1. Fluid leaks in the brake system | BRAKE SYSTEM |
| 2. Air in the brake system | BRAKE SYSTEM | |
| 3. Pad is worn (for front) | INSPECTION | |
| 4. Pad is worn (for rear) | INSPECTION | |
| 5. Pad is cracked or distorted (for front) | INSPECTION | |
| 6. Pad is cracked or distorted (for rear) | INSPECTION | |
| 7. Pad is oily (for front) | INSPECTION | |
| 8. Pad is oily (for rear) | INSPECTION | |
| 9. Pad is glazed (for front) | INSPECTION | |
| 10. Pad is glazed (for rear) | INSPECTION | |
| 11. Disc is scored (for front) | INSPECTION | |
| 12. Disc is scored (for rear | INSPECTION | |
| 13. Booster push rod clearance is out of adjustment | INSTALLATION | |
| 14. Vacuum check valve | INSTALLATION | |
| 15. Vacuum leaks in the booster system | ON-VEHICLE INSPECTION | |
| Brake noise | 1. Pad is cracked or distorted | INSPECTION |
| 2. Pad is cracked or distorted (for rear) | INSPECTION | |
| 3. Installation bolt is loosen (for front) | COMPONENTS | |
| 4. Installation bolt is loosen (for rear) | COMPONENTS | |
| 5. Disc is scored (for front) | INSPECTION | |
| 6. Disc is scored (for rear) | INSPECTION | |
| 7. Pad support plate is loosen (for front) | INSTALLATION | |
| 8. Pad support plate is loosen (for rear) | REMOVAL | |
| 9. Sliding pin is worn (for front) | COMPONENTS | |
| 10. Sliding pin is worn (for rear) | COMPONENTS | |
| 11. Pad is dirty (for front) | INSPECTION | |
| 12. Pad is dirty (for rear) | INSPECTION | |
| 13. Pad is glazed (for front) | INSPECTION | |
| 14. Pad is glazed (for rear) | INSPECTION | |
| 15. Anti-squeal shim is damaged (for front) | REMOVAL | |
| 16. Anti-squeal shim is damaged (for rear) | REMOVAL |