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

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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

Parking brake actuator O-ring

Click here

Brake drag Brake pedal free play*a (insufficient)

Click here

Brake pedal free play*b (insufficient)

Click here

Parking brake actuator

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

Front brake piston (seized)

Click here

Rear brake piston (stuck)

Click here

Rear brake piston (seized)

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 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)

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Rear disc (scored)

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Front disc brake pad (cracked or distorted)

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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)

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Rear disc brake pad (worn)

Click here

Front disc brake pad (cracked or distorted)

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Rear disc brake pad (cracked or distorted)

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Front disc brake pad (oily)

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Rear disc brake pad (oily)

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Front disc brake pad (glazed)

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Rear disc brake pad (glazed)

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Front disc (scored)

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Rear disc (scored)

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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)

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Rear disc brake pad (cracked or distorted)

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Front disc brake cylinder mounting bolt (loose)

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Rear disc brake cylinder mounting bolt (loose)

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Front disc (scored)

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Rear disc (scored)

Click here

Front disc brake pad support plate (loose)

Click here

Rear disc brake pad support plate (loose)

Click here

Front disc brake cylinder slide pin (worn)

Click here

Rear disc brake cylinder slide pin (worn)

Click here

Front disc brake pad (dirty)

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Rear disc brake pad (dirty)

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Front disc brake pad (glazed)

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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