GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 29800 Cut-Off Tool

  1. Remove the post converter heat shield. Refer to Converter Heat Shield Replacement .
  2. Remove the oxygen sensor. Refer to Engine Controls.
  3. Support the catalytic converter.

  4. Object Number: 43575  Size: SH
  5. Cut the exhaust pipes with the J 29800 .

  6. Object Number: 71751  Size: SH
  7. Remove the front exhaust pipe nuts.
  8. Remove the seal.
  9. Remove the catalytic converter assembly.

Installation Procedure


    Object Number: 71751  Size: SH
  1. Install the front exhaust pipe and catalytic converter assembly using a U-bolt type clamp. Position the clamp so the nuts are toward the drivers side of vehicle.
  2. Install the seal.

  3. Object Number: 43538  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.

  4. Install the front exhaust pipe to the catalytic converter nuts.
  5. Tighten

        • Tighten the nuts to 25 N·m (18 lb ft).
        • Tighten the clamp to 40 N·m (30 lb ft).
  6. Install the oxygen sensor. Refer to Oxygen Sensor Replacement in Engine Controls.
  7. Install the post converter heat shield Converter Heat Shield Replacement .