GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Set the parking brake.
  2. Block the wheels.
  3. Place a suitable container under the master cylinder in order to catch the fluid.

  4. Object Number: 220733  Size: SH
  5. Remove the hydraulic pipes from the master cylinder.
  6. Cap or plug the hydraulic pipes.
  7. Remove the low fluid level sensor electrical connector.
  8. Remove the master cylinder mounting bolts.
  9. Remove the master cylinder.

Installation Procedure


    Object Number: 220733  Size: SH

    Important: Refer to Master Cylinder Bench Bleeding before installing the master cylinder.

  1. Install the master cylinder.
  2. Notice: 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.

  3. Install the mounting nuts.
  4. Tighten
    Tighten the mounting nuts to 36 N·m (27 lb ft).

  5. Install the master cylinder mounting nuts.
  6. Connect the low fluid level sensor connector.
  7. Remove the plugs or caps from the hydraulic pipes.
  8. Install the hydraulic pipes to the master cylinder.
  9. Bleed the brake system. Refer to Hydraulic Brake System Bleeding .
  10. Caution: After releasing the parking brake, be sure the vehicle will not roll forward or backwards when removing the wheel blocks. If the vehicle is not in gear, the vehicle may move possibly causing personal injury.

  11. Remove the wheel blocks.
  12. Release the parking brake.