GM Service Manual Online
For 1990-2009 cars only

Exhaust Manifold Replacement 7.8L, w/o CTF

Removal Procedure


    Object Number: 736693  Size: SH
  1. Remove the turbocharger drain pipe with gasket.
  2. Remove the turbocharger oil feed pipe.
  3. Remove the turbocharger assembly.
  4. Remove the front exhaust pipe.
  5. Remove the exhaust manifold nuts, bolts, washers and the spacers.
  6. Remove the exhaust manifold with the gasket.

Installation Procedure

  1. Install the exhaust manifold and gasket to the cylinder head.
  2. Install the exhaust manifold nuts, bolts, washers and the spacers.
  3. 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.


    Object Number: 736693  Size: SH
  4. Tighten the exhaust manifold nuts and bolts in the proper sequence.
  5. Tighten
    Tighten the nuts and bolts to 34 N·m (25 lb ft).