GM Service Manual Online
For 1990-2009 cars only

    Object Number: 177810  Size: MH
  1. Install the new intake manifold gasket to the cylinder head.
  2. 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.

  3. Install the intake manifold with the TBI unit (8) and wire clamps to the cylinder head still attached. Secure the intake manifold with the two nuts and the seven bolts.
  4. Tighten
    Tighten the intake manifold mounting bolts and nuts to 23 N·m (17 lb ft).