GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 602331  Size: SH
  1. Remove the ignition coil cassette. Refer to Ignition Coil Replacement - Bank 1 .
  2. Remove the ignition control module retaining screws.
  3. Remove the ignition control module.

Installation Procedure


    Object Number: 602331  Size: SH

    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.

  1. Install the ignition control module.
  2. Tighten
    Tighten the ignition control module retaining screws to 0.8 N·m (7 lb in).

    Important: Ensure that the ignition cassette grounding spring and insulator are in place when installing the ignition cassette.

  3. Connect the spark plug boots to the spark plugs.
  4. Carefully install the ignition cassette. Refer to Ignition Coil Replacement - Bank 1 .