GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 221843  Size: MH
  1. Remove the Brake Modulator Assembly. Refer to Brake Pressure Modulator Valve Assembly Replacement .
  2. Remove the Torx® head screws (5) that attach the gear cover.
  3. Remove the gear cover (4).

Installation Procedure


    Object Number: 221843  Size: MH
  1. Install the gear cover (4) onto the modulator assembly.
  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 Torx® head screws (5).
  4. Tighten
    Tighten the Torx® screws to 4 N·m (36 lb in).

  5. Install the Brake Modulator Assembly. Refer to Brake Pressure Modulator Valve Assembly Replacement .