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Home >> Toyota >> 2008 >> Highlander Base, AWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brakes - Mechanical (Except Hybrid) >> Brake System >> Problem Symptoms Table

Problem Symptoms Table

HINT:

Use the table below to help determine the cause of the problem. The likely causes of the problem are indicated in descending order. Check each suspected part in order. Repair or replace faulty parts or perform adjustment as necessary.

BRAKE SYSTEM: 

PROBLEM SYMPTOMS TABLE

Symptom Suspected Area Information
Low pedal or spongy pedal Fluid leaks in brake system -
Air in brake system ON-VEHICLE INSPECTION 
Piston seals (Worn or damaged) (FRONT) DISASSEMBLY 
Piston seals (Worn or damaged) (REAR) DISASSEMBLY 
Master cylinder (Faulty) REMOVAL 
Brake drag Brake pedal free play (Insufficient) ADJUSTMENT 
Parking brake pedal travel (Out of adjustment) ADJUSTMENT
Parking brake cable (Sticking) REMOVAL
Parking brake shoe clearance (Out of adjustment) ADJUSTMENT
Pad (Cracked or distorted) (FRONT) INSPECTION 
Pad (Cracked or distorted) (REAR) INSPECTION 
Piston (Stuck) (FRONT) INSPECTION 
Piston (Stuck) (REAR) INSPECTION 
Piston (Seized) (FRONT) INSPECTION 
Piston (Seized) (REAR) INSPECTION 
Vacuum leaks in booster system ON-VEHICLE INSPECTION 
Master cylinder (Faulty) REMOVAL 
Brake pull Piston (Stuck) (FRONT) INSPECTION 
Piston (Stuck) (REAR) INSPECTION 
Pad (Oily) (FRONT) INSPECTION 
Pad (Oily) (REAR) INSPECTION 
Piston (Seized) (FRONT) INSPECTION 
Piston (Seized) (REAR) INSPECTION 
Disc (Scored) (FRONT) INSPECTION 
Disc (Scored) (REAR) INSPECTION 
Pad (Cracked or distorted) (FRONT) INSPECTION 
Pad (Cracked or distorted) (REAR) INSPECTION 
Hard pedal but brake inefficient Fluid leaks in brake system -
Air in brake system ON-VEHICLE INSPECTION 
Pad (Worn) (FRONT) INSPECTION 
Pad (Worn) (REAR) INSPECTION 
Pad (Cracked or distorted) (FRONT) INSPECTION 
Pad (Cracked or distorted) (REAR) INSPECTION 
Pad (Oily) (FRONT) INSPECTION 
Pad (Oily) (REAR) INSPECTION 
Pad (Glazed) (FRONT) INSPECTION 
Pad (Glazed) (REAR) INSPECTION 
Disc (Scored) (FRONT) INSPECTION 
Disc (Scored) (REAR) INSPECTION 
Vacuum leaks in booster system ON-VEHICLE INSPECTION 
Noise from brakes Pad (Cracked or distorted) (FRONT) INSPECTION 
Pad (Cracked or distorted) (REAR) INSPECTION 
Cylinder mounting bolt (Loose) (FRONT) REASSEMBLY 
Cylinder mounting bolt (Loose) (REAR) REASSEMBLY 
Disc (Scored) (FRONT) INSPECTION 
Disc (Scored) (REAR) INSPECTION 
Pad support plate (Loose) (FRONT) INSPECTION 
Pad support plate (Loose) (REAR) INSPECTION 
Sliding pin (Worn) (FRONT) DISASSEMBLY 
Sliding pin (Worn) (REAR) DISASSEMBLY 
Pad (Dirty) (FRONT) INSPECTION 
Pad (Dirty) (REAR) INSPECTION 
Pad (Glazed) (FRONT) INSPECTION 
Pad (Glazed) (REAR) INSPECTION 
Anti-squeal shim (Damaged) (FRONT) DISASSEMBLY 
Anti-squeal shim (Damaged) (REAR) DISASSEMBLY