GM Service Manual Online
For 1990-2009 cars only

Turbocharger Installation L65-CMT


    Object Number: 70642  Size: SH
  1. Install the seal onto the engine block.
  2. Install the turbocharger.
  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.

  4. Install the turbocharger mounting bolts.
  5. Tighten
    Tighten the turbocharger mounting bolts to 65 N·m (48 lb ft).

  6. Install the wastegate actuator bracket mounting bolts.
  7. Tighten
    Tighten the wastegate actuator bracket mounting bolts to 65 N·m (48 lb ft).

    Important: In order to ensure heat shield clearance, locate the exhaust pipe clamps as shown.

  8. Slide the exhaust clamps over the exhaust manifold and turbocharger.

  9. Object Number: 70644  Size: SH
  10. Install the right hand side exhaust pipe.
  11. Important: Tighten the clamps at the exhaust manifold end first.

  12. Place the clamps in the correct position.
  13. Tighten
    Tighten the clamps to 10 N·m (90 lb in).


    Object Number: 70643  Size: SH
  14. Install the left hand side exhaust pipe.
  15. Important: Tighten the clamps at the exhaust manifold end first.

  16. Place the clamps in the correct position.
  17. Tighten
    Tighten the clamps to 10 N·m (90 lb in).