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For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2001 🢒 Yukon - 2WD 🢒 Engine 🢒 Engine Mechanical - 8.1L 🢒 Exhaust Manifold Installation - Right Side

Exhaust Manifold Installation - Right Side C/K/C3500HD


    Object Number: 470723 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: 470719 Size: SH
  2. Install the NEW right exhaust manifold gasket.
  3. Install the right exhaust manifold.
  4. Install the right exhaust manifold nuts and center bolt.

    5. Tighten

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

    Object Number: 470706 Size: SH
  5. Install the right exhaust manifold heat shield.
  6. Install the right exhaust manifold heat shield bolts and nuts.

    7. Tighten
    Tighten the right exhaust manifold heat shield bolts and nuts to 25 N·m (18 lb ft).


    Object Number: 470727 Size: SH
  7. Install the right spark plugs.

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


    Object Number: 470704 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 right spark plug wires to the spark plugs and ignition coils.

    9. Object Number: 635635 Size: SH
  9. Install the exhaust gas recirculation (EGR) pipe and NEW EGR pipe gaskets.
  10. Install the EGR pipe nuts to the right exhaust manifold.

    11. Tighten
    Tighten the EGR pipe nuts to 30 N·m (22 lb ft).

  11. Install the EGR pipe bolts to the EGR adapter.

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

  12. Install the EGR pipe bracket bolt.

    13. Tighten
    Tighten the EGR pipe bracket bolt to 50 N·m (37 lb ft).


    Object Number: 470646 Size: SH
  13. Install the secondary air injection pump pipe.
  14. Install the secondary air injection pump pipe bolt to the right cylinder head.

    15. Tighten
    Tighten the secondary air injection pump pipe bolt to 50 N·m (37 lb ft).


    Object Number: 470644 Size: SH
  15. Install the secondary air injection pipe and NEW secondary air injection pipe gasket.
  16. Connect the secondary air injection pipe to the secondary air injection pump pipe.
  17. Install the secondary air injection pipe bolts to the right exhaust manifold.

    18. Tighten
    Tighten the secondary air injection pipe bolts to 25 N·m (18 lb ft).

  18. Install the secondary air injection pipe nut to the fuel injection fuel rail stud.

    19. Tighten
    Tighten the secondary air injection pipe nut to 12 N·m (106 lb in).

Exhaust Manifold Installation - Right Side G


    Object Number: 470723 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: 470719 Size: SH
  2. Install the NEW right exhaust manifold gasket.
  3. Install the right exhaust manifold.
  4. Install the right exhaust manifold nuts and center bolt.

    5. Tighten

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

    Object Number: 470706 Size: SH
  5. Install the right exhaust manifold heat shield.
  6. Install the right exhaust manifold heat shield bolts and nuts.

    7. Tighten
    Tighten the right exhaust manifold heat shield bolts and nuts to 25 N·m (18 lb ft).


    Object Number: 470727 Size: SH
  7. Install the right spark plugs.

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


    Object Number: 470704 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 right spark plug wires to the spark plugs and ignition coils.

    9. Object Number: 654377 Size: SH
  9. Install the exhaust gas recirculation (EGR) pipe and NEW EGR pipe gaskets.
  10. Install the EGR pipe nuts to the right exhaust manifold.

    11. Tighten
    Tighten the EGR pipe nuts to 30 N·m (22 lb ft).

  11. Install the EGR pipe bolts to the EGR valve.

    12. Tighten
    Tighten the EGR pipe bolts to 25 N·m (19 lb ft).

  12. Install the EGR pipe bracket bolt.

    13. Tighten
    Tighten the EGR pipe bracket bolt to 50 N·m (37 lb ft).


    Object Number: 647700 Size: SH
  13. Install the secondary air injection pipe and NEW secondary air injection pipe gasket.
  14. Install the secondary air injection pipe bolts to the right exhaust manifold.

    15. Tighten
    Tighten the secondary air injection pipe bolts to 25 N·m (18 lb ft).


    Object Number: 647698 Size: SH
  15. Install the secondary air injection pump pipe.
  16. Connect the secondary air injection pipe to the secondary air injection pump pipe.
  17. Install the secondary air injection pump pipe nut to the fuel injection fuel rail stud.

    18. Tighten
    Tighten the secondary air injection pipe nut to 12 N·m (106 lb in).

  18. Install the secondary air injection pump pipe bolt to the right cylinder head.

    19. Tighten
    Tighten the secondary air injection pump pipe bolt to 25 N·m (19 lb ft).

Exhaust Manifold Installation - Right Side Medium Duty


    Object Number: 470723 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: 470725 Size: SH
  2. Install the NEW right exhaust manifold gasket.
  3. Install the right exhaust manifold.
  4. Install the right exhaust manifold nuts and center bolt.

    5. Tighten

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

    Object Number: 470708 Size: SH
  5. Install the right exhaust manifold heat shield.
  6. Install the right exhaust manifold heat shield nuts.

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


    Object Number: 470727 Size: SH
  7. Install the right spark plugs.

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


    Object Number: 470704 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 right spark plug wires to the spark plugs and ignition coils.

    9. Object Number: 470737 Size: SH
  9. Install the exhaust gas recirculation (EGR) pipe and NEW EGR pipe gaskets.
  10. Install the EGR pipe nuts to the right exhaust manifold.

    11. Tighten
    Tighten the EGR pipe nuts to 25 N·m (19 lb ft).

  11. Install the EGR pipe bolts to the EGR adapter.

    12. Tighten
    Tighten the EGR pipe bolts to 25 N·m (19 lb ft).

  12. Install the EGR pipe bracket bolt.

    13. Tighten
    Tighten the EGR pipe bracket bolt to 50 N·m (37 lb ft).