
32-2
BRAKE - BRAKE SYSTEM
32039-21
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.
Symptom Suspect Area See page
3. Fluid leaks for brake system -
4. Air in brake system 32-4
Low pedal or spongy pedal 5. Piston seals (Worn or damaged) 32-22
32-29
6. Brake Master cylinder (Faulty) 32-13
1. Brake pedal freeplay (Minimal) 32-6
2. Parking brake pedal travel (Out of adjustment) 33-2
3. Parking brake wire (Sticking) 33-8
33-12
4. Parking brake shoe clearance (Out of adjustment) 33-17
5. Pad (Cracked or distorted) 32-22
32-37
Brake drag
6. Shoe (Cracked or distorted) 32-29
7. Piston (Stuck or Frozen) 32-22
32-29
32-37
8. Tension or return spring (Faulty) 32-29
9. Vacuum leaks for booster system 32-16
10.Master cylinder (Faulty) 32-13
1. Piston (Stuck or Frozen) 32-22
32-29
32-37
2. Pad (Oily) 32-22
32-37
Brake pull 3. Disc (Scored) 32-22
32-37
4. Pad (Cracked or distorted) 32-22
32-37
5. Drum (Scored) 32-29
6. Shoe (Cracked or distorted) 32-29
1. Fluid leaks for brake system -
2. Air in brake system 32-4
3. Pad (Worn) 32-22
32-37
4. Pad (Cracked or distorted) 32-22
Hard pedal but brake inefficient 32-37
5. Pad (Oily) 32-22
32-37
6. Pad (Glazed or Scored) 32-22
32-37
7. Vacuum leaks for booster system 32-13
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2750
32-3
BRAKE - BRAKE SYSTEM
1. Pad (Cracked or distorted) 32-22
32-37
2. Installation bolt (Loose) 32-22
32-37
3. Disc (Scored) 32-22
32-37
4. Pad support plate (Loose) 32-22
32-37
Noise from brakes
5. Sliding pin (Worn) 32-22
32-37
6. Pad (dirty or Glazed) 32-22
32-37
7. Tension or return spring (Faulty) 32-29
8. Anti-squeal shim (Damaged) 32-22
32-37
9. Shoe hold-down spring (Damaged) 32-29
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2751