Problem Symptoms Table
WARNING: This page is about a different car, the 2005 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
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 |
| Low pedal or spongy pedal |
- Fluid leaks for brake system
- Air in brake system
- Piston seals (Worn or damaged)
- Brake Master cylinder (Faulty)
|
| Brake drag |
- Brake pedal freeplay (Minimal)
- Parking brake pedal travel (Out of adjustment)
- Parking brake wire (Sticking)
- Parking brake shoe clearance (Out of adjustment)
- Pad (Cracked or distorted)
- Shoe (Cracked or distorted)
- Piston (Stuck or Frozen)
- Tension or return spring (Faulty)
- Vacuum leaks for booster system
- Master cylinder (Faulty)
|
| Brake pull |
- Piston (Stuck or Frozen)
- Pad (Oily)
- Disc (Scored)
- Pad (Cracked or distorted)
- Drum (Scored)
- Shoe (Cracked or distorted)
|
| Hard pedal but brake inefficient |
- Fluid leaks for brake system
- Air in brake system
- Pad (Worn)
- Pad (Cracked or distorted)
- Pad (Oily)
- Pad (Glazed or Scored)
- Vacuum leaks for booster system
|
| Noise from brakes |
- Pad (Cracked or distorted)
- Installation bolt (Loose)
- Disc (Scored)
- Pad support plate (Loose)
- Sliding pin (Worn)
- Pad (dirty or Glazed)
- Tension or return spring (Faulty)
- Anti-squeal shim (Damaged)
- Shoe hold-down spring (Damaged)
|