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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 481 (Disc Brake System) >> Repair Instructions >> Front 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: Compressing Brake Caliper Pistons
    GM370154Courtesy of GENERAL MOTORS COMPANY
  7. 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.
  8. Clean all dirt and debris from the brake caliper and fittings.
  9. Fig 2: View Of Brake Hose To Caliper Bolt
    GM367082Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • Cap or plug the brake hose to prevent brake fluid leakage and contamination of the brake system.
    • Ensure that the washers are not still attached to the brake hose or the brake caliper.
    • DO NOT re-use the washers, discard and replace with new.
  10. Remove the brake hose to caliper bolt.
  11. Remove the brake hose from the brake caliper.
  12. Remove and discard the 2 copper brake hose gaskets.
  13. Fig 3: View Of Brake Caliper Mounting
    GM789166Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    Do not depress the brake pedal with the brake rotors/calipers and/or the brake drums removed. Damage to the brake system may result. If brake system damage occurs and is not repaired, vehicle damage and/or personal injury or death may result.

  14. Remove the brake caliper guide pin bolts from the brake caliper.
  15. Remove the brake caliper from the caliper mounting bracket.