Problem Symptoms Table
Use the table below to help you find the cause of the 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 TABLE - BRAKE SYSTEM
| Symptom |
Suspect Area |
| Lower pedal or spongy pedal |
- Brake system (Fluid leaks)
- Brake system (Air in)
- Piston seals (Worn or damaged)
- Master cylinder (Faulty)
- Booster push rod (Out of adjustment)
|
| Brake drag |
- Brake pedal free play (Minimal)
- Parking brake pedal travel (Out of adjustment)
- Parking brake wire (Sticking)
- Rear brake shoe clearance (Out of adjustment)
- Pad (Cracked or distorted)
- Piston (Stuck)
- Piston (Frozen)
- Tension or return spring (Faulty)
- Booster push rod (Out of adjustment)
- Vacuum leaks for booster system
- Master cylinder (Faulty)
|
| Brake pull |
- Piston (Stuck)
- Pad (Oily)
- Piston (Frozen)
- Disc (Scored)
- Pad (Cracked or distorted)
|
| Hard pedal but brake inefficient |
- Brake system (Fluid leaks)
- Brake system (Air in)
- Piston (Stuck)
- Pad (Cracked or distorted)
- Pad (Oily)
- Pad (Glazed)
- Disc (Scored)
- Booster push rod (Out of adjustment)
- Vacuum leaks for booster system
|
| Noise from brake |
- Pad (Cracked or distorted)
- Installation bolt (Loosen)
- Disc (Scored)
- Pad support plate (Loosen)
- Sliding pin (Worn)
- Pad (Dirty)
- Pad (Glazed)
- Tension or return spring (Faulty)
- Anti-squeal shim (Damage)
- Hold-down spring (Damage)
|