GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1801742  Size: SH
  1. Remove the oil jet bolt (1) attaching the oil jet (2), three places.

  2. Object Number: 1801747  Size: SH
  3. Remove the cylinder block-to-oil pan alignment dowels (1) and the bank 1 side front oil pan rail oil gallery expansion plug (2).

  4. Object Number: 1801749  Size: SH
  5. Remove the bank 1 side oil gallery threaded plug (1) and coolant drain threaded plug (2).

  6. Object Number: 1801751  Size: SH
  7. Remove the rear oil gallery threaded plug (1), the bank 2 side coolant drain threaded plug (2) and the left-hand side oil gallery threaded plug (3).

  8. Object Number: 1801755  Size: SH

    Important: Do not force coolant expansion plugs downwards during removal procedure as the cylinder block will be damaged.

  9. Remove the coolant expansion plugs (1) and the cylinder block-to-cylinder head alignment dowels (2).

  10. Object Number: 1801802  Size: SH
  11. Remove the cylinder block-to-transmission alignment dowels (1).

  12. Object Number: 1801812  Size: SH
  13. Remove the front oil gallery expansion plug (1).