GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2001 🢒 Catera 🢒 Preface 🢒 Cautions and Notices 🢒 Master Cylinder Replacement

Removal Procedure

    Object Number: 219488 Size: SH
  1. Remove the brake master cylinder reservoir cover (1).

    2. Object Number: 219492 Size: SH
  2. Remove the brake fluid from the brake master cylinder reservoir.

    3. Discard the brake fluid in accordance with local regulations.


    Object Number: 219497 Size: SH
  3. Remove the reservoir from the master cylinder body.
  4. Remove power steering reservoir bracket bolt.
  5. Remove the power steering reservoir bracket.

    6. Move power steering reservoir towards engine slightly.


    Object Number: 219500 Size: SH
  6. Remove the brake pipes (2) from the master cylinder.

    7. Plug the open brake pipes to prevent brake fluid from leaking onto painted surfaces and/or becoming contaminated.

  7. Remove the master cylinder attaching nuts (1).
  8. Remove the brake master cylinder.

    9. Object Number: 219553 Size: SH

    Important: The seal should be replaced.

  9. Remove the brake master cylinder seal (1) from the brake master cylinder.

Installation Procedure

    Object Number: 219553 Size: SH

    Notice: When filling the master cylinder, use only Delco Supreme 11, GM P/N 12377967 (Canadian P/N 992667), or equivalent DOT 3 brake fluid. Do not use a container which has been used for petroleum based fluids, or a container which is wet with water. Petroleum based fluids will cause swelling and distortion of rubber parts in the hydraulic brake system, and water will mix with brake fluid, lowering the boiling point. Keep all fluid containers capped to prevent contamination.

  1. Install the brake master cylinder seal (1) to the brake master cylinder.

    2. Object Number: 219500 Size: SH
  2. Install the brake master cylinder.

    3. 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 brake master cylinder mounting nuts   (1).

    4. Tighten
    Tighten the nut to 22 N·m (16 lb ft).

  4. Install the brake pipes (2) to the brake master cylinder.

    5. Tighten
    Tighten the brake pipe fittings to 16 N·m (12 lb ft).

  5. Install the power steering reservoir bracket.
  6. Install the power steering reservoir bracket bolt.

    7. Tighten
    Tighten the power steering reservoir bracket bolt to 7 N·m (62 lb in).


    Object Number: 219554 Size: SH
  7. Lubricate the reservoir grommets (1) and the reservoir flanges with brake fluid.
  8. Install the reservoir to the master cylinder body.

  9. Fill the reservoir with brake fluid. Refer to Fluid and Lubricant Recommendations in Maintenance and Lubrication.

    10. Object Number: 219488 Size: SH
  10. Install the brake master cylinder reservoir cover (1).
  11. Bleed hydraulic brake system. Refer to Hydraulic Brake System Bleeding .