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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1588 (Parking Brake System) >> Repair Instructions >> Parking Brake Adjustment (3500 DRW) >> Park Brake Adjustment Verification Check

Park Brake Adjustment Verification Check

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Apply and release the park brake lever 3-5 times.
  2. Install the J-28662:  Brake Pedal Effort Gauge to the park brake lever pedal.
  3. Observe the number of detents required to apply the park brake pedal to the amount of force specified, as indicated on the J-28662:  Brake Pedal Effort Gauge.

    Specification: 

    • First-design park brake pedal assembly: 6-8 detents to apply the park brake pedal to 400 N (90 lb) of force
    • Second-design park brake pedal assembly: 4-6 detents to apply the park brake pedal to 300 N (67 lb) of force

  4. If the number of detents required to achieve correct force is less than the specification, then the cable tension is too high. Repeat adjustment steps as necessary.
  5. If the number is detents required to achieve correct force is greater than the specification, then the cable tension is too low. Repeat adjustment steps as necessary.
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