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For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 Yukon XL - 2WD 🢒 Engine 🢒 Engine Mechanical - 8.1L 🢒 Exhaust Manifold Installation - Left Side

Exhaust Manifold Installation - Left Side Medium Duty


    Object Number: 470683 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 into the cylinder head, if necessary.

    2. Tighten
    Tighten the exhaust manifold studs to 20 N·m (15 lb ft).


    Object Number: 470686 Size: SH
  2. Install the NEW left exhaust manifold gasket.
  3. Install the left exhaust manifold.
  4. Install the left exhaust manifold nuts and center bolt.

    5. Tighten

        • Tighten the left exhaust manifold center bolt to 35 N·m (26 lb ft).
        • Tighten the left exhaust manifold nuts to 16 N·m (12 lb ft).

    Object Number: 470678 Size: SH
  5. Install the left exhaust manifold heat shield.
  6. Install the left exhaust manifold heat shield nuts.

    7. Tighten
    Tighten the left exhaust manifold heat shield nuts to 25 N·m (19 lb ft).


    Object Number: 470690 Size: SH
  7. Install the left spark plugs.

    8. Tighten
    Tighten the left spark plugs to 20 N·m (15 lb ft).


    Object Number: 470666 Size: SH

    Important: Fully install the spark plug wire by pushing on the exposed end of the spark plug boot. Do not push the spark plug wire onto the spark plug by using the metal heat shield.

  8. Install the left spark plug wires to the spark plugs and ignition coils.

Exhaust Manifold Installation - Left Side C/K/G/C3500HD


    Object Number: 470683 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 into the cylinder head, if necessary.

    2. Tighten
    Tighten the exhaust manifold studs to 20 N·m (15 lb ft).


    Object Number: 470679 Size: SH
  2. Install the NEW left exhaust manifold gasket.
  3. Install the left exhaust manifold.
  4. Install the left exhaust manifold nuts and center bolt.

    5. Tighten

        • Tighten the left exhaust manifold center bolt to 35 N·m (26 lb ft).
        • Tighten the left exhaust manifold nuts to 16 N·m (12 lb ft).

    Object Number: 470676 Size: SH
  5. Install the left exhaust manifold heat shield.
  6. Install the left exhaust manifold heat shield bolts and nuts.

    7. Tighten
    Tighten the left exhaust manifold heat shield bolts and nuts to 25 N·m (19 lb ft).


    Object Number: 470690 Size: SH
  7. Install the left spark plugs.

    8. Tighten
    Tighten the left spark plugs to 20 N·m (15 lb ft).


    Object Number: 470666 Size: SH

    Important: Fully install the spark plug wire by pushing on the exposed end of the spark plug boot. Do not push the spark plug wire on to the spark plug by using the metal heat shield.

  8. Install the left spark plug wires to the spark plugs and ignition coils.