GM Service Manual Online
For 1990-2009 cars only

Exhaust Manifold Installation L65


    Object Number: 60243  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.

  1. Install the left exhaust manifold and the bolts.
  2. Tighten
    Tighten the bolts to 35 N·m (26 lb ft).


    Object Number: 66575  Size: SH
  3. Install the right exhaust manifold and the bolts.
  4. Tighten
    Tighten the bolts to 35 N·m (26 lb ft).

Exhaust Manifold Installation L57


    Object Number: 60243  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.

  1. Install the left exhaust manifold and the bolts.
  2. Tighten
    Tighten the bolts to 35 N·m (26 lb ft).


    Object Number: 68327  Size: SH
  3. Install the right exhaust manifold and the bolts.
  4. Tighten
    Tighten the bolts to 35 N·m (26 lb ft).