GM Service Manual Online
For 1990-2009 cars only

Catalytic Converter Replacement 2.2L

Removal Procedure

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

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the three way catalytic converter.
  3. Support the exhaust manifold pipe assembly.

  4. Object Number: 25258  Size: SH
  5. Remove the three way catalytic converter from the intermediate pipe.

  6. Object Number: 25259  Size: SH
  7. Remove the three way catalytic converter from the exhaust manifold pipe assembly.

  8. Object Number: 72282  Size: SH
  9. Remove the three way catalytic converter and seals.
  10. Clean the flange surfaces.

Installation Procedure


    Object Number: 72282  Size: SH
  1. Install the three way catalytic converter seals.

  2. Object Number: 25258  Size: SH
  3. Install the three way catalytic converter to the intermediate pipe assembly.

  4. Object Number: 25259  Size: SH
  5. Install the three way catalytic converter to the exhaust manifold pipe assembly.
  6. Lower the vehicle.

Catalytic Converter Replacement 2.4L

Removal Procedure

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

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the three way catalytic converter.
  3. Support the exhaust manifold pipe assembly.

  4. Object Number: 25258  Size: SH
  5. Remove the three way catalytic converter from the intermediate pipe.

  6. Object Number: 25259  Size: SH
  7. Remove the three way catalytic converter from the exhaust manifold pipe assembly.

  8. Object Number: 72282  Size: SH
  9. Remove the three way catalytic converter and seals.
  10. Clean the flange surfaces.

Installation Procedure


    Object Number: 72282  Size: SH
  1. Install the three way catalytic converter seals.

  2. Object Number: 25258  Size: SH
  3. Install the three way catalytic converter to the intermediate pipe assembly.

  4. Object Number: 25259  Size: SH
  5. Install the three way catalytic converter to the exhaust manifold pipe assembly.
  6. Lower the vehicle.