GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 GMC C Sierra - 2WD 🢒 Engine 🢒 Engine Controls - 6.6L 🢒 Intake Air Heater Replacement

Removal Procedure

    Object Number: 813243 Size: SH
  1. Loosen the outlet duct clamp at the upper intake manifold cover.
  2. Remove he upper intake manifold cover from the outlet duct.
  3. Remove the upper intake manifold cover.
  4. Remove the intake air heater harness connector nut.
  5. Remove the intake air heater from the inlet pipe.

Installation Procedure

    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 intake air heater in the inlet pipe.

    2. Tighten
    Tighten the intake air heater to 50 N·m (37 lb ft).

  2. Connect the intake air heater harness connector.

    3. Tighten
    Tighten the air intake heater electrical nut to 5 N·m (44 lb in).


    Object Number: 813243 Size: SH
  3. Install the upper intake manifold cover.
  4. Install the upper intake manifold cover to the outlet duct.
  5. Tighten the outlet duct clamp at the upper intake manifold cover.

    6. Tighten
    Tighten the clamp to 6 N·m (53 lb in).