GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 41712 Oil Pressure Switch Socket


    Object Number: 182855  Size: SH

    Caution: Wear safety glasses in order to avoid eye damage.

  1. Install the transmission locator pins, if required.
  2. A properly installed transmission locator pin will protrude 12.7 mm (0.5 in) from the rear face of the engine block.


    Object Number: 182854  Size: SH
  3. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent, to the outside diameter of the NEW camshaft rear bearing hole expansion cup plug.
  4. Install the NEW camshaft rear bearing hole expansion cup plug.

  5. Object Number: 521836  Size: SH
  6. Install the crankshaft rear oil seal housing locator S type pin.

  7. Object Number: 182841  Size: SH
  8. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent, to the threads of the left side rear and left rear top engine oil gallery plugs.
  9. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  10. Install the left side rear and left rear top oil engine gallery plugs.
  11. Tighten
    Tighten the left side rear and left rear top engine oil gallery plugs to 20 N路m (15 lb ft).


    Object Number: 69847  Size: SH
  12. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent, to the threads of the square socket engine block oil gallery plugs.
  13. Install the square socket plugs.
  14. Tighten
    Tighten the square socket plugs to 20 N路m (15 lb ft).


    Object Number: 182838  Size: SH
  15. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent to the outside diameter of the NEW engine oil gallery plugs.
  16. Install the NEW engine block oil gallery plugs.
  17. A properly installed engine oil gallery plug must be installed below flush with the front face of the engine block.


    Object Number: 500653  Size: SH
  18. Apply threadlock GM P/N United States 12345382, GM P/N Canada 10953489, or equivalent, to the outside diameter of the NEW engine block core hole plugs.
  19. Install the NEW engine block core hole plugs.
  20. A properly installed engine block core hole plug must be installed flush or below the bottom of the chamfer (1) of the engine block core hole.


    Object Number: 316798  Size: SH
  21. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent, to the threads of the engine block coolant drain hole plug.
  22. Install the engine block coolant drain hole plug.
  23. Tighten
    Tighten the engine block coolant drain hole plug to 20 N路m (15 lb ft).


    Object Number: 333659  Size: SH
  24. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent, to the threads of the engine oil pressure sensor fitting.
  25. Important: Do not loosen the oil pressure sensor fitting after the initial torque has been obtained.

  26. Install the engine oil pressure sensor fitting.
  27. Tighten
    Tighten the engine oil pressure sensor fitting to 15 N路m (11 lb ft).

    Important: Do not rotate the engine oil pressure sensor fitting more than 359 degrees after the initial torque has been obtained.

  28. Rotate the engine oil pressure sensor fitting clockwise to the proper position (1), 50 degrees from the centerline (2).

  29. Object Number: 333649  Size: SH
  30. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent, to the threads of the engine oil pressure gage sensor.
  31. Install the engine oil pressure gage sensor using the J 41712 .
  32. Tighten
    Tighten the engine oil pressure gage sensor to 30 N路m (22 lb ft).


    Object Number: 182837  Size: SH
  33. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent, to the threads of the knock sensor.
  34. Install the knock sensor.
  35. Tighten
    Tighten the knock sensor to 19 N路m (14 lb ft).