GM Service Manual Online
For 1990-2009 cars only

Cylinder Head Removal Left


    Object Number: 387769  Size: SH
  1. Remove the engine coolant temperature sensor (if applicable).

  2. Object Number: 387767  Size: SH
  3. Remove the engine coolant temperature gauge sensor (if applicable).

  4. Object Number: 328582  Size: SH
  5. Remove the spark plugs.

  6. Object Number: 328588  Size: SH
  7. Remove the bolts and the spark plug wire support.

  8. Object Number: 480533  Size: SH
  9. Remove the cylinder head bolts and discard.

  10. Object Number: 480536  Size: SH

    Notice: After removal, place the cylinder head on 2 wood blocks in order to prevent damage to the sealing surfaces.

  11. Remove the cylinder head.

  12. Object Number: 334299  Size: SH
  13. Remove and discard the cylinder head gasket.

  14. Object Number: 330548  Size: SH
  15. Remove the dowel pins (cylinder head locator) (if required).

Cylinder Head Removal Right


    Object Number: 328586  Size: SH
  1. Remove the spark plugs.

  2. Object Number: 328590  Size: SH
  3. Remove the rear bolt and the spark plug wire support.

  4. Object Number: 480537  Size: SH
  5. Remove the cylinder head bolts and discard.

  6. Object Number: 480538  Size: SH

    Notice: After removal, place the cylinder head on 2 wood blocks in order to prevent damage to the sealing surfaces.

  7. Remove the cylinder head.

  8. Object Number: 334312  Size: SH
  9. Remove and discard the cylinder head gasket.

  10. Object Number: 330553  Size: SH
  11. Remove the dowel pins (cylinder head locator) (if required).