GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the catalytic converter.
  2. • For the 5.7L, refer to Oxidation Catalytic Converter .
    • For the 3800, refer to Catalytic Converter Replacement .

    Object Number: 21708  Size: SH
  3. Remove the converter heat shield screws.

  4. Object Number: 21709  Size: SH
  5. Remove the converter heat shield.

Installation Procedure


    Object Number: 21709  Size: SH
  1. Install the catalytic converter heat shield.

  2. Object Number: 21708  Size: SH
  3. Install the converter heat shield screws.
  4. Tighten
    Tighten the heat shield screws to 2 N·m (18 lb in).

    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.

  5. Install the catalytic converter.
  6. • For the 5.7L (VIN P), refer to Oxidation Catalytic Converter .
    • For the 3800 (VIN K), refer to Catalytic Converter Replacement .