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Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Disc Brakes >> Removal & Installation >> Brake Caliper >> Removal (Front)

Removal (Front)

  1. Inspect the fluid level in the brake master cylinder reservoir. 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.
  2. 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. Raise and support the vehicle. Remove the tire and wheel assembly.
  3. Compress the brake caliper pistons. Install a large C-clamp over the top of the caliper housing and against the back of the outboard pad. See Fig 1. Slowly tighten the C-clamp until the pistons are pushed completely into the caliper bores. Remove the C-clamp from the caliper.
  4. NOTE: Install a rubber cap or plug to the exposed brake pipe fitting end to prevent brake fluid loss and contamination.
  5. Clean all dirt and foreign material from the brake hose end. Remove the brake hose to caliper bolt from the brake caliper. See Fig 2. Remove and discard the 2 copper brake hose gaskets. These gaskets may be stuck to the brake caliper housing or the brake hose end. Remove the brake hose from the caliper.
  6. CAUTION: 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.
  7. Remove the 2 brake caliper mounting bolts. See Figure. Remove the brake caliper from the brake caliper mounting bracket.
Fig 1: Removing Brake Caliper (Front Shown, Rear Similar)
G00303311Courtesy of GENERAL MOTORS CORP.
Fig 2: Removing/Installing Brake Hose Bolt From Brake Caliper (Front)
G00303312Courtesy of GENERAL MOTORS CORP.