GM Service Manual Online
For 1990-2009 cars only

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 187052  Size: SH
  1. Install the exhaust manifold studs and tighten to 18 N·m (13 lb ft).
  2. Install the exhaust manifold gasket.
  3. Install the exhaust manifold.
  4. Install the exhaust manifold nuts and tighten to 16 N·m (12 lb ft).
  5. Install the right side spark plugs and tighten to 15 N·m (11 lb ft).
  6. Install the spark plug wires onto the spark plugs.

  7. Object Number: 187050  Size: SH
  8. Install the lower exhaust manifold heat shield.
  9. Install the upper exhaust manifold heat shield.
  10. Install the exhaust manifold heat shield bolts and tighten to 10 N·m (89 lb in).

  11. Object Number: 186996  Size: SH
  12. Coat the threads of the heated oxygen sensor with anti seize compound. Tighten the heated oxygen sensor to 42 N·m (31 lb ft).
  13. Install the heated oxygen sensor.
  14. Install the spark plug wires.