GM Service Manual Online
For 1990-2009 cars only

    Object Number: 33612  Size: SH
  1. Install the exhaust manifold gasket.
  2. Install the exhaust manifold.

  3. Object Number: 60046  Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  4. Install the exhaust manifold to the cylinder head retaining nuts. Follow the tightening sequence.
  5. Tighten
    Tighten the nuts to 13 N·m (115 lb in).


    Object Number: 33611  Size: SH
  6. Install the exhaust manifold upper heat shield.
  7. Install the exhaust manifold upper heat shield bolts.
  8. Tighten
    Tighten the bolts to 14 N·m (124 lb in).


    Object Number: 33609  Size: SH
  9. Install the exhaust manifold brace to the exhaust manifold.
  10. Install the exhaust manifold brace to the exhaust manifold bolt.
  11. Tighten
    Tighten the bolt to 56 N·m (41 lb ft).

  12. Install the exhaust manifold brace to the oil pan.
  13. Install the exhaust manifold brace to the oil pan nuts.
  14. Tighten
    Tighten the nuts to 26 N·m (19 lb ft).