GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Caution: Refer to Brake Fluid Irritant Caution in the Preface section.

Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in the Preface section.

  1. Using the proper tool, remove the brake fluid from the master cylinder reservoir.
  2. Remove fluid lever sensor electrical connector.
  3. Remove the brake lines from the ABS module to the master cylinder.
  4. Important: Install a rubber cap or plug to the exposed brake pipe fitting in order to prevent brake fluid loss and contamination.

  5. Install the rubber cap and or plugs the brake lines.
  6. Remove the mounting bolts from the master cylinder.
  7. Remove the master cylinder.

Installation Procedure

  1. Bench bleed the master cylinder. Refer to Master Cylinder Bench Bleeding .
  2. Install the master cylinder on the mounting studs.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the mounting nuts.
  5. Tighten
    Tighten the mounting nuts to 30 N·m (22 lb ft).

  6. Install the fluid lever sensor electrical connector.
  7. Remove the rubber caps and or plugs from the brake lines.
  8. Install the brake lines from the ABS module to the master cylinder.
  9. Tighten
    Tighten the brake line fittings to 17 N·m (13 lb ft).

  10. Fill the reservoir with fluid. Refer to Master Cylinder Reservoir Filling .
  11. Check the operation of the brake system. Bleed the brakes if necessary. Refer to Hydraulic Brake System Bleeding .