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. Remove the exhaust manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement - Right Side .

  2. Object Number: 1221193  Size: SH
  3. Remove the catalytic converter nuts.

  4. Object Number: 902881  Size: SH
  5. Remove the exhaust manifold bolts.
  6. Remove the exhaust manifold and discard the exhaust manifold gasket.
  7. If reusing the exhaust manifold, clean and inspect the exhaust manifold sealing surfaces. Refer to Exhaust Manifold Cleaning and Inspection - Right Side .

Installation Procedure

    Important : Inspect the catalytic converter seal/heat shield sealing surface. Replace the seal/heat shield if the sealing surface is worn or damaged.


    Object Number: 902881  Size: SH
  1. Install a NEW exhaust manifold gasket to the exhaust manifold.
  2. Install the exhaust manifold with the gasket to the cylinder head and the catalytic converter.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the exhaust manifold bolts.
  5. Tighten
    Tighten the exhaust manifold bolts in sequence to 20 N·m  (15 lb ft).


    Object Number: 1221193  Size: SH
  6. Install the catalytic converter nuts.
  7. Tighten
    Tighten the catalytic converter nuts to 50 N·m  (37 lb ft).

  8. Install the exhaust manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement - Right Side .
  9. Inspect the exhaust system for leaks.