GM Service Manual Online
For 1990-2009 cars only

Exhaust Manifold Removal - Left Side Medium Duty


    Object Number: 470666  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 left spark plug wires from the spark plugs and ignition coils.

  2. Object Number: 470678  Size: SH
  3. Remove the left exhaust manifold heat shield nuts.
  4. Remove the left exhaust manifold heat shield.

  5. Object Number: 470686  Size: SH
  6. Remove the left exhaust manifold nuts and center bolt.
  7. Remove the left exhaust manifold.
  8. Remove the left exhaust manifold gasket.

  9. Object Number: 470690  Size: SH
  10. Remove the left spark plugs.

  11. Object Number: 470683  Size: SH
  12. Remove the exhaust manifold studs, if necessary.

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


    Object Number: 470666  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 or the wire could be damaged.

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

  2. Object Number: 470676  Size: SH
  3. Remove the left exhaust manifold heat shield bolts and nuts.
  4. Remove the left exhaust manifold heat shield.

  5. Object Number: 470679  Size: SH
  6. Remove the left exhaust manifold nuts and center bolt.
  7. Remove the left exhaust manifold.
  8. Remove the left exhaust manifold gasket.

  9. Object Number: 470690  Size: SH
  10. Remove the left spark plugs.

  11. Object Number: 470683  Size: SH
  12. Remove the exhaust manifold studs, if necessary.