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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 41 (Hydraulic Brakes) >> Repair Instructions >> Master Cylinder 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.
  1. Install the master cylinder reservoir. Refer to Master Cylinder Reservoir Replacement .
  2. Bench bleed the master cylinder. Refer to Master Cylinder Bench Bleeding .
  3. Fig 1: View Of Master Cylinder & Mounting Nuts
    GM793137Courtesy of GENERAL MOTORS CORP.
  4. Install the master cylinder to the vehicle.
  5. 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.
  6. Install the master cylinder mounting nuts.

    Tighten:  Tighten the nuts to 36 N.m (27 lb ft).

  7. Remove the rubber cap or plug from the exposed brake pipe fitting ends.
  8. Fig 2: View Of Brake Pipes To Master Cylinder
    GM793135Courtesy of GENERAL MOTORS CORP.
  9. Connect the brake pipes.

    Tighten:  Tighten the pipe fittings to 25 N.m (18 lb ft).

  10. Connect the electrical connector to the brake fluid level sensor.
  11. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding (Manual)  or Hydraulic Brake System Bleeding (Pressure) .
  12. Release the park brake and unblock the wheels.