Notice: Improperly tightened wheel bolts or nuts can lead to brake pulsation and rotor damage. In order to avoid expensive brake repairs, evenly tighten the wheel bolts or nuts to the proper torque specification.

DEFINITION:

Was the Hydraulic Brake Diagnostic System Check performed?

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Go to Step 2

Go to Brake System Diagnosis

1. Road test the vehicle where the following diagnostics will permit.
2. Apply the brakes when the vehicle speed is approximately 80 kph (50 mph).
3. Observe the steering wheel.

Does the steering wheel shake when the brakes are applied?

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Go to Step 6

Go to Step 3

Important: This diagnostic step is intended for DOMESTIC vehicles ONLY.

1. Road test the vehicle where the following diagnostics will permit.
2. Lightly apply and hold the PARK brake when the vehicle speed is approximately 8 kph (5 mph) until the vehicle stops.

Does the vehicle lurch when the brakes are applied?

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Go to Step 4

Go to Step 6

Inspect the brake drums for excessive runout or out-of-round. Refer to Brake Drum Inspection in Drum Brakes.

Do either of the brake drums exhibit excessive runout or out-of-round?

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Go to Step 5

Go to Step 6

Refinish or replace the drum(s) as necessary. Refer to Brake Drum Refinishing or Brake Drum Replacement in Drum Brakes.

Is the repair complete?

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Go to Brake System Diagnosis

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Inspect the brake rotors for excessive thickness variation and excessive lateral runout. Refer to Brake Rotor Thickness Variation Check and Brake Rotor Lateral Runout Check in Disc Brakes.

Does the rotor thickness variation and/or lateral runout exceed specifications?

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Go to Step 7

Go to Brake System Diagnosis

Resurface or replace the brake rotor(s) as necessary. Refer to Brake Rotor Refinishing or Brake Rotor Replacement in Disc Brakes.

Is the repair complete?

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Go to Brake System Diagnosis

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