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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 120 (Disc Brake System) >> Repair Instructions >> Rear Brake Caliper Replacement (2500 Series) >> Removal Procedure

Removal Procedure

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  1. Inspect the fluid level in the brake master cylinder reservoir.
  2. If the brake fluid level is midway between the maximum-full point and the minimum allowable level, no brake fluid needs to be removed from the reservoir before proceeding.
  3. If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, remove brake fluid to the midway point before proceeding.
  4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  5. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
    6. Fig 1: C-Clamp & Rear Caliper
    GM687185Courtesy of GENERAL MOTORS CORP.
  6. Compress the brake caliper pistons.
    1. Install 2 large C-clamps over the top of the caliper housing and against the back of the outboard brake pad.
    2. Slowly tighten the C-clamps until the caliper pistons are pushed completely into the caliper bores.
    3. Remove the C-clamps from the caliper.
  7. Clean all dirt and debris from the brake caliper and fittings.
    8. Fig 2: View Of Brake Hose To Caliper - Rear
    GM363420Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Cap or plug to the brake hose to prevent brake fluid leakage and contamination of the brake system.
  8. Remove the brake hose to caliper bolt.
  9. Remove the brake hose from the caliper.
    10. IMPORTANT:
    • Ensure that the copper gaskets are not attached to the brake caliper or the brake hose.
    • DO NOT re-use the copper gaskets, replace them with NEW.
  10. Remove and discard the 2 copper brake hose gaskets.
    11. Fig 3: View Of Rear Caliper Mounting Bolts
    GM913587Courtesy of GENERAL MOTORS CORP.
  11. Remove the brake caliper guide pin bolts from the brake caliper.
  12. Remove the brake caliper from the mounting bracket.
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