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Home >> Chevrolet >> 2002 >> Impala LS >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc Brakes & Drum Brakes >> Adjustments & Inspections >> Park Brake System >> Parking Brake Adjustment

Parking Brake Adjustment

NOTE: Required Tools: Drum-to-Brake Shoe Clearance Gage (J-21177-A).
  1. Apply and fully release the parking brake six times. Verify that the parking brake pedal releases completely. Turn ON the ignition. Verify that the BRAKE indicator lamp is off. If the BRAKE indicator lamp is on, ensure that the parking brake pedal is in release mode and fully returned to stop. Remove the slack in the front parking brake cable by pulling downward on the cable. Raise and suitably support the vehicle. Remove the rear tire and wheel assemblies.
  2. Remove both rear caliper brackets. See BRAKE CALIPER BRACKETS  under REMOVAL & INSTALLATION. Relieve tension on the park brake system at the park brake equalizer. Remove both rear brake rotors. See BRAKE ROTORS  under REMOVAL & INSTALLATION.
  3. Set the Drum-to-Brake Shoe Clearance Gage inside of the park brake drum at the widest point. Place the contacts on the tool to the widest point of the drum. Tighten the set screw on the tool to ensure the proper measurement when removing the tool from the drum.
  4. Position the Drum-to-Brake Shoe Clearance Gage over the park brake shoe at the widest point. Turn the adjuster on the actuator until the park brake shoe just contacts the Drum-to-Brake Shoe Clearance Gage.
  5. Repeat steps  3 and  4 for the opposite side. Install both rear brake rotors. See BRAKE ROTORS  under REMOVAL & INSTALLATION. Install both rear caliper brackets. See BRAKE CALIPER BRACKETS  under REMOVAL & INSTALLATION.
  6. Install the rear tire and wheel assemblies. Adjust the parking brake by turning the nut at the equalizer while spinning both rear wheels. When either rear wheel starts to drag, back off the nut one full turn. Lower the vehicle to curb height. Apply the parking brake, then inspect for rotation of the rear wheels. If the rear wheels rotate during this inspection, then readjust the parking brake shoes. Release the parking brake. Verify that the wheels rotate freely. Lower the vehicle.
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