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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 508 (Disc Brakes) >> Adjustments & Inspections >> Parking Brake Adjustment

Parking Brake Adjustment

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Park brake adjustment is not necessary after replacing the park brake lever or park brake cables. The park brake cables are tensioned automatically by cycling the park brake lever three times.
  1. Apply and fully release the parking brake three times.
  2. Verify that the parking brake lever releases completely.
  3. Turn ON the ignition. Verify that the Red BRAKE warning indicator light is off.
  4. Turn OFF the ignition.
  5. Raise and support the vehicle.
  6. Remove the rear tire and wheel assemblies.
    7. CAUTION: DO NOT operate the park brake lever with the rear disc brake rotors removed.
  7. Remove the rear disc brake rotors. See REAR BRAKE ROTOR  under REMOVAL & INSTALLATION.
  8. Place the inside measurement contacts of the Drum to Brake Shoe Clearance Gauge (J-21177-A) at the widest point of the drum portion of the brake rotor.
  9. Tighten the set screw on the Drum to Brake Shoe Clearance Gauge in order to ensure the proper measurement when removing the tool from the drum.
  10. Position the outside measurement contacts of the Drum to Brake Shoe Clearance Gauge over the park brake shoe at the widest point.
    11. NOTE: If the gap between the adjustment nut and the adjustment screw of the parking brake actuator exceeds 0.25" (5 mm) during the adjustment procedure, the park brake shoe must be replaced.
  11. Adjust the park brake shoe-to-drum clearance by rotating the adjustment nut on the parking brake actuator. See Fig 1. Park brake shoe-to-drum clearance should be adjusted to 0.015" (.38 mm).
  12. Install the rear brake rotors. See REAR BRAKE ROTOR  under REMOVAL & INSTALLATION.
  13. Install the rear tire and wheel assemblies. Tighten wheel lug nuts to specification. See TORQUE SPECIFICATIONS .
  14. Apply and release the park brake lever three times.
  15. Apply the park brake lever. Inspect the rotation of the rear wheels:
    • The wheels should not rotate forward.
    • The wheels should drag or not rotate rearward.
  16. If the rear tire and wheel assemblies rotate forward or do not exhibit drag rearward, repeat the adjustment procedure.
  17. Release the parking lever. Verify that the wheels rotate freely.
  18. Lower the vehicle.
Fig 1: Exploded View Of Parking Brake Actuator Assembly
G00250012Courtesy of GENERAL MOTORS CORP.
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