GM Service Manual Online
For 1990-2009 cars only

Exhaust Manifold Replacement 7.8L With CTF

Removal Procedure

  1. Remove the front exhaust pipe. Refer to Front Pipe Replacement .
  2. Remove the exhaust gas recirculation (EGR) pipe. Refer to Exhaust Gas Recirculation Pipe Replacement .
  3. Remove the 2 heat shield bolts.
  4. Remove the turbocharger. Refer to Turbocharger Replacement .

  5. Object Number: 1369899  Size: SH
  6. Remove the exhaust manifold nuts (1-12), washers, spacers and heat shield.
  7. Remove the exhaust manifold with the gasket.

Installation Procedure


    Object Number: 1369899  Size: SH
  1. Install the exhaust manifold and gasket to the cylinder head.
  2. Install the exhaust manifold nuts, washers, spacers and the heat shield.
  3. Install the 2 heat shield bolts.
  4. Install the EGR pipe. Refer to Exhaust Gas Recirculation Pipe Replacement .
  5. Notice: Refer to Fastener Notice in the Preface section.

  6. Tighten the exhaust manifold nuts in the proper sequence.
  7. Tighten

        • Tighten the nuts (7, 12) to 34 N·m (25 lb ft).
        • Tighten the nuts (1-6, 8-11) to 55 N·m (41 lb ft).
  8. Install the turbocharger. Refer to Turbocharger Replacement .
  9. Install the front exhaust pipe. Refer to Front Pipe Replacement .