GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1957843  Size: SH
  1. Install a NEW exhaust manifold gasket (1) and NEW sealing ring (3) to the exhaust manifold (2).
  2. Notice: Refer to Exhaust System Inspection Notice in the Preface section.

  3. Install the exhaust manifold assembly to the engine.

  4. Object Number: 1957825  Size: SH

    Important: DO NOT fully tighten the exhaust manifold to cylinder head retaining bolts (1) at this stage.

  5. Install the NEW exhaust manifold to cylinder head retaining bolts (1).
  6. Notice: Refer to Fastener Notice in the Preface section.

  7. Tighten the exhaust manifold to cylinder head retaining bolts (1) working from the centre to the outside.
  8. Tighten
    Tighten the bolts to 20 N·m (15 lb ft).


    Object Number: 1957856  Size: SH
  9. Install the exhaust manifold heat shield (2).
  10. Install the exhaust manifold heat shield to exhaust manifold retaining bolts (1).
  11. Tighten
    Tighten the bolts to 10 N·m (89 lb in).