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.
  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.
  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.