GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1866809  Size: SH
  1. Position a NEW exhaust manifold gasket onto the left exhaust manifold.
  2. Install the exhaust manifold bolts into the left exhaust manifold.
  3. Place the left exhaust manifold, exhaust manifold gasket and bolts as an assembly in position on the left cylinder head.
  4. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the exhaust manifold bolts into the left cylinder head.
  6. Tighten
    Tighten the exhaust manifold bolts to 25 N·m (18 lb ft).


    Object Number: 1866807  Size: SH
  7. Install the engine coolant temperature (ECT) sensor.
  8. Tighten
    Tighten the ECT sensor to 30 N·m (22 lb ft).


    Object Number: 1938702  Size: SH
  9. Place the left exhaust manifold heat shield in position.

  10. Object Number: 1938706  Size: SH
  11. Install the left exhaust manifold heat shield bolts.
  12. Tighten
    Tighten the left exhaust manifold heat shield bolts to 10 N·m (89 lb in).


    Object Number: 1866805  Size: SH
  13. Install the left torque strut bracket.
  14. Install the left torque strut bracket bolts.
  15. Tighten
    Tighten the left torque strut bracket bolts to 50 N·m (37 lb ft).


    Object Number: 1866809  Size: SH
  1. Position a NEW exhaust manifold gasket onto the left exhaust manifold.
  2. Install the exhaust manifold bolts into the left exhaust manifold.
  3. Place the left exhaust manifold, exhaust manifold gasket and bolts as an assembly in position on the left cylinder head.
  4. Caution: Refer to Fastener Caution in the Preface section.

  5. Install the exhaust manifold bolts into the left cylinder head and tighten to 25 N·m (18 lb ft).

  6. Object Number: 1866807  Size: SH
  7. Install the engine coolant temperature (ECT) sensor and tighten to 30 N·m (22 lb ft).

  8. Object Number: 1938702  Size: SH
  9. Place the left exhaust manifold heat shield in position.

  10. Object Number: 1938706  Size: SH
  11. Install the left exhaust manifold heat shield bolts and tighten to 10 N·m (89 lb in).

  12. Object Number: 1866805  Size: SH
  13. Install the left torque strut bracket.
  14. Install the left torque strut bracket bolts and tighten to 50 N·m (37 lb ft).