GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2001 🢒 Yukon XL - 4WD 🢒 Engine 🢒 Engine Mechanical - 8.1L 🢒 Exhaust Manifold Removal - Right Side

Exhaust Manifold Removal - Right Side C/K/C3500HD


    Object Number: 470644 Size: SH
  1. Remove the secondary air injection pipe nut from the fuel injection fuel rail stud (if applicable).
  2. Remove the secondary air injection pipe bolts from the right exhaust manifold (if applicable).
  3. Disconnect the secondary air injection pipe from the secondary air injection pump pipe (if applicable).
  4. Remove the secondary air injection pipe (if applicable).

    5. Object Number: 470646 Size: SH
  5. Remove the secondary air injection pump pipe bolt from the right cylinder head (if applicable).
  6. Remove the secondary air injection pump pipe (if applicable).

    7. Object Number: 470704 Size: SH

    Important: Twist the spark plug boot one-half turn in order to release the boot. Pull on the spark plug boot only. Do not pull on the spark plug wire.

  7. Remove the right spark plug wires from the spark plugs and ignition coils.

    8. Object Number: 635635 Size: SH
  8. Remove the exhaust gas recirculation (EGR) pipe bolts from the EGR adapter plate.
  9. Remove the EGR pipe nuts from the right exhaust manifold.
  10. Remove the EGR pipe bracket bolt.
  11. Remove the EGR pipe and gaskets.

    12. Object Number: 470706 Size: SH
  12. Remove the right exhaust manifold heat shield bolts and nuts.
  13. Remove the right exhaust manifold heat shield.

    14. Object Number: 470719 Size: SH
  14. Remove the right exhaust manifold nuts and center bolt.
  15. Remove the right exhaust manifold.
  16. Remove the right exhaust manifold gasket.

    17. Object Number: 470727 Size: SH
  17. Remove the right spark plugs.

    18. Object Number: 470723 Size: SH
  18. Remove the exhaust manifold studs, if necessary.

Exhaust Manifold Removal - Right Side G


    Object Number: 647698 Size: SH
  1. Remove the secondary air injection pump pipe nut from the fuel injection fuel rail stud (if applicable).
  2. Remove the secondary air injection pump pipe bolt from the right cylinder head (if applicable).
  3. Disconnect the secondary air injection pipe from the secondary air injection pump pipe (if applicable).
  4. Remove the secondary air injection pump pipe (if applicable).

    5. Object Number: 647700 Size: SH
  5. Remove the secondary air injection pipe bolts from the right exhaust manifold (if applicable).
  6. Remove the secondary air injection pipe (if applicable).

    7. Object Number: 470704 Size: SH

    Important: Twist the spark plug boot one-half turn in order to release the boot. Pull on the spark plug boot only. Do not pull on the spark plug wire.

  7. Remove the right spark plug wires from the spark plugs and ignition coils.

    8. Object Number: 654377 Size: SH
  8. Remove the exhaust gas recirculation (EGR) pipe bolts from the EGR valve.
  9. Remove the EGR pipe nuts from the right exhaust manifold.
  10. Remove the EGR pipe bracket bolt.
  11. Remove the EGR pipe and gaskets.

    12. Object Number: 470706 Size: SH
  12. Remove the right exhaust manifold heat shield bolts and nuts.
  13. Remove the right exhaust manifold heat shield.

    14. Object Number: 470719 Size: SH
  14. Remove the right exhaust manifold nuts and center bolt.
  15. Remove the right exhaust manifold.
  16. Remove the right exhaust manifold gasket.

    17. Object Number: 470727 Size: SH
  17. Remove the right spark plugs.

    18. Object Number: 470723 Size: SH
  18. Remove the exhaust manifold studs, if necessary.

Exhaust Manifold Removal - Right Side Medium Duty


    Object Number: 470704 Size: SH

    Important: Twist the spark plug boot one-half turn in order to release the boot. Pull on the spark plug boot only. Do not pull on the spark plug wire.

  1. Remove the right spark plug wires from the spark plugs and ignition coils.

    2. Object Number: 470737 Size: SH
  2. Remove the exhaust gas recirculation (EGR) pipe bolts from the EGR adapter.
  3. Remove the EGR pipe nuts from the right exhaust manifold.
  4. Remove the EGR pipe bracket bolt.
  5. Remove the EGR pipe and gaskets.

    6. Object Number: 470708 Size: SH
  6. Remove the right exhaust manifold heat shield nuts.
  7. Remove the right exhaust manifold heat shield.

    8. Object Number: 470725 Size: SH
  8. Remove the right exhaust manifold nuts and center bolt.
  9. Remove the right exhaust manifold.
  10. Remove the right exhaust manifold gasket.

    11. Object Number: 470727 Size: SH
  11. Remove the right spark plugs.

    12. Object Number: 470723 Size: SH
  12. Remove the exhaust manifold studs, if necessary.