BRAKE SYSTEM PROBLEM SYMPTOMS TABLE

Tech Tips

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Symptom Suspected Area Link
Low or spongy pedal Fluid leaks in brake system -
Air in brake system

Click here

Front piston seals (worn or damaged)

Click here

Rear piston seals (worn or damaged)

Click here

Brake master cylinder sub-assembly*a (faulty)

Click here

Brake master cylinder sub-assembly*b (faulty)

Click here

Brake booster push rod*a (adjustment necessary)

Click here

Brake booster push rod*b (adjustment necessary)

Click here

Brake drag Brake pedal free play*a (insufficient)

Click here

Brake pedal free play*b (insufficient)

Click here

Parking brake pedal travel (out of adjustment)

Click here

Parking brake cable (sticking)

Click here

Parking brake shoe clearance (out of adjustment)

Click here

Front disc brake pad (cracked or distorted) Click here
Rear disc brake pad (cracked or distorted) Click here
Front brake piston (stuck) Click here
Rear brake piston (stuck) Click here
Front brake piston (seized) Click here
Rear brake piston (seized) Click here
Parking brake shoe return tension spring (damaged)

Click here

Vacuum leaks in booster system*a

Click here

Vacuum leaks in booster system*b

Click here

Brake master cylinder sub-assembly*a (faulty)

Click here

Brake master cylinder sub-assembly*b (faulty)

Click here

Brake booster push rod*a (adjustment necessary) Click here
Brake booster push rod*b (adjustment necessary)

Click here

Brake pull Front brake piston (stuck) Click here
Rear brake piston (stuck) Click here
Front disc brake pad (oily) Click here
Rear disc brake pad (oily) Click here
Front brake piston (seized) Click here
Rear brake piston (seized) Click here
Front disc (scored)

Click here

Rear disc (scored)

Click here

Front disc brake pad (cracked or distorted)

Click here

Rear disc brake pad (cracked or distorted)

Click here

Hard pedal but braking inefficient Fluid leaks in brake system -
Air in brake system

Click here

Front disc brake pad (worn)

Click here

Rear disc brake pad (worn)

Click here

Front disc brake pad (cracked or distorted)

Click here

Rear disc brake pad (cracked or distorted)

Click here

Front disc brake pad (oily)

Click here

Rear disc brake pad (oily)

Click here

Front disc brake pad (glazed)

Click here

Rear disc brake pad (glazed)

Click here

Front disc (scored)

Click here

Rear disc (scored)

Click here

Vacuum leaks in booster system*a

Click here

Vacuum leaks in booster system*b

Click here

Noise from brakes Front disc brake pad (cracked or distorted)

Click here

Rear disc brake pad (cracked or distorted)

Click here

Front disc brake cylinder mounting bolt (loose)

Click here

Rear disc brake cylinder mounting bolt (loose)

Click here

Front disc (scored)

Click here

Rear disc (scored)

Click here

Front disc brake anti-rattle spring (loose)

Click here

Rear disc brake pad support plate (loose)

Click here

Front disc brake anti-rattle with hole pin (worn)

Click here

Rear disc brake cylinder slide pin (worn)

Click here

Front disc brake pad (dirty)

Click here

Rear disc brake pad (dirty)

Click here

Front disc brake pad (glazed)

Click here

Rear disc brake pad (glazed)

Click here

Front brake anti-squeal shim (damaged)

Click here

Rear brake anti-squeal shim (damaged)

Click here

*a: for LHD

*b: for RHD