GM Service Manual Online
For 1990-2009 cars only

    Object Number: 412447  Size: SH
  1. Install the drain plug in the water pump.
  2. Apply GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the plug before installation.
  3. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the coolant jacket plugs and tighten to 35 N·m (26 lb ft).
  5. Apply GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the plugs before installation.
  6. Install the rear oil passage plugs and tighten to 60 N·m (44 lb ft).
  7. Apply GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the plug before installation.
  8. Install the other oil passage plugs and tighten to 35 N·m (26 lb ft).

  9. Object Number: 630345  Size: SH
  10. Lubricate the crankshaft position sensor O-ring with engine oil.
  11. Install the crankshaft position sensor and bolt and tighten to 10 N·m (89 lb in).

  12. Object Number: 630350  Size: SH
  13. Install the oil pressure switch and tighten to 26 N·m (19 lb ft).

  14. Object Number: 1977766  Size: SH
  15. Install the knock sensor and bolt and tighten to 25 N·m (18 lb ft).

  16. Object Number: 1594334  Size: SH
  17. Install the piston oil nozzle assemblies, if equipped.
  18. Install the piston oil nozzle assembly bolts and tighten to 15 N·m (11 lb ft).