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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 42 (Disc Brakes) >> Repair Instructions >> Front Brake Caliper Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Brake Caliper Mounting
    GM789166Courtesy of GENERAL MOTORS CORP.
  1. Install the brake caliper to the brake caliper mounting bracket.
  2. Perform the following procedure before installing the caliper guide pin bolts.
    1. Remove all traces of the original adhesive patch.
    2. Clean the threads of the bolt with brake parts cleaner or the equivalent and allow to dry.
    3. Apply Threadlocker GM P/N 12345493 (Canadian P/N 10953488) to the threads of the bolt.
  3. NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
  4. Install the brake caliper guide pin bolts.

    Tighten:  Tighten the brake caliper guide pin bolts to 108 N.m (80 lb ft).

  5. Remove the rubber cap or plug from the exposed brake hose fitting end.
  6. IMPORTANT: Install 2 new copper brake hose gaskets.
  7. Assemble the 2 new copper brake hose gaskets and the brake hose to caliper bolt to the brake hose.
  8. Fig 2: View Of Brake Hose To Caliper Bolt
    GM367082Courtesy of GENERAL MOTORS CORP.
  9. Install the brake hose to caliper bolt to the brake caliper.

    Tighten:  Tighten the brake hose to caliper bolt to 40 N.m (30 lb ft).

  10. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding (Manual) or Hydraulic Brake System Bleeding (Pressure) .
  11. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
  12. Lower the vehicle.
  13. Fill the master cylinder reservoir to the proper level with clean brake fluid. Refer to Master Cylinder Reservoir Filling .