GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Generic 🢒 2005 🢒 Unit Repair 🢒 Engine 🢒 Engine Mechanical - 3.5L (LX9) 🢒 Exhaust Manifold Installation - Right Side

    Object Number: 909569 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 exhaust manifold studs, if required.

    2. Tighten
    Tighten the exhaust manifold studs to 18 N·m (13 lb ft).

  2. Install the exhaust manifold gasket.
  3. Install the exhaust manifold.
  4. Install the exhaust manifold nuts.

    5. Tighten
    Tighten the exhaust manifold nuts in sequence to 16 N·m (12 lb ft).


    Object Number: 909567 Size: SH
  5. Install the exhaust manifold heat shield.
  6. Install the exhaust manifold heat shield bolts.

    7. Tighten
    Tighten the exhaust manifold heat shield bolts to 10 N·m (89 lb in).


    Object Number: 909565 Size: SH
  7. Install the exhaust gas recirculation (EGR) pipe.
  8. Install the EGR pipe bolt to the EGR valve.

    9. Tighten
    Tighten the EGR pipe bolt to 25 N·m (18 lb ft).

  9. Install the EGR pipe bolts to the exhaust manifold.

    10. Tighten
    Tighten the EGR pipe bolts to 30 N·m (22 lb ft).

  10. Install the spark plugs.

    11. Tighten
    Tighten the spark plugs to 15 N·m (11 lb ft).

  11. Install the spark plug wires.
  12. Install the heated oxygen sensor.

    13. Tighten
    Tighten the heated oxygen sensor to 42 N·m (31 lb ft).