GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Caution: Refer to Exhaust Service Caution in the Preface section.

Caution: Refer to Protective Goggles and Glove Caution in the Preface section.

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

  2. Object Number: 1313621  Size: SH
  3. Remove the nuts attaching the catalytic converter to the exhaust manifold.
  4. Position the exhaust system rearward, enough to allow clearance to remove the seal.

  5. Object Number: 1313620  Size: SH
  6. Remove and discard the exhaust manifold seal.

Installation Procedure


    Object Number: 1313620  Size: SH
  1. Install a NEW seal to the exhaust manifold flange.

  2. Object Number: 1313621  Size: SH
  3. Position the catalytic converter to the exhaust manifold.
  4. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the nuts attaching the catalytic converter to the exhaust manifold.
  6. Tighten
    Tighten the nuts to 50 N·m (37 lb ft).

  7. Lower the vehicle.