GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Notice: Do not over-flex or damage the flex joint when moving the flex joint from the normal mounting position.

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  2. Object Number: 889722  Size: SH
  3. Separate the post catalytic converter HO2S wiring (1) from the exhaust heat shield.
  4. Remove the catalytic converter pipe from the vehicle, to access the center rivet on the exhaust heat shield. Refer to Catalytic Converter Replacement .
  5. Release the exhaust extension pipe forward insulators from the underbody hangers, and support the extension pipe.

  6. Object Number: 878833  Size: SH
  7. Remove the exhaust heat shield retaining nut.
  8. Drill out and remove the heat shield retaining rivets.
  9. Remove the heat shield from the vehicle.

Installation Procedure


    Object Number: 878833  Size: SH
  1. Install the exhaust heat shield into position on the vehicle.
  2. Install new heat shield retaining rivets.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the exhaust heat shield retaining nut.
  5. Tighten
    Tighten the nut to 10 N·m (89 lb in).

  6. Remove the support from the exhaust extension pipe.
  7. Install the exhaust extension pipe forward insulators to the underbody hangers.
  8. Install the catalytic converter pipe to the vehicle. Refer to Catalytic Converter Replacement .

  9. Object Number: 889722  Size: SH
  10. Install the post catalytic converter HO2S wiring (1).
  11. Lower the vehicle.