GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1999 🢒 Firefly (Canada) 🢒 Brakes 🢒 Antilock Brake System 🢒 Modulator Gear Cover Replacement

Removal Procedure

    Object Number: 221843 Size: MH
  1. Remove the brake modulator assembly. Refer to Brake Pressure Modulator Valve Assembly Replacement .
  2. Remove six screws (5) that retain the gear cover to the hydraulic modulator/motor pack assembly (1).
  3. Remove the gear cover (4).

Installation Procedure

    Object Number: 221843 Size: MH
  1. Install the gear cover (4) onto the modulator/motor pack assembly (1).

    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.

  2. Install the six screws (5).

    3. Tighten
    Tighten the screws (5) to 4 N·m (36 lb in).

  3. Install the brake modulator assembly. Refer to Brake Pressure Modulator Valve Assembly Replacement .