GM Service Manual Online
For 1990-2009 cars only
  1. Install the exhaust manifold and new gasket.
  2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 828857  Size: SH
  3. Install the 3 exhaust manifold bolts (1-3) and 2 exhaust manifold nuts (4-5).
  4. Tighten
    Tighten the exhaust manifold nuts and bolts to 50 N·m (37 lb ft).

  5. Install the lower heat insulator.
  6. Tighten
    Tighten the lower heat insulator bolts to 20 N·m (15 lb ft).

  7. Install the 5 upper heat insulator bolts.
  8. Tighten
    Tighten the upper heat insulator bolts to 20 N·m (15 lb ft).


    Object Number: 824940  Size: SH
  9. Install the exhaust manifold bracket to the manifold bolt.
  10. Tighten
    Tighten the exhaust manifold bracket bolt to 50 N·m (37 lb ft).