GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 41712 Oil Pressure Switch Socket


    Object Number: 182844  Size: SH

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

  1. Remove the bolts, the fuel pump opening cover, and the fuel pump opening cover gasket.
  2. Discard the fuel pump opening gasket.

  3. Object Number: 182855  Size: SH
  4. Remove the transmission locator pins (if required).

  5. Object Number: 182854  Size: SH
  6. Remove the expansion cup plug (camshaft rear bearing hole).

  7. Object Number: 182837  Size: SH
  8. Remove the knock sensor.

  9. Object Number: 333649  Size: SH
  10. Remove the fuel pump switch & engine oil pressure gauge sensor using the J 41712 .

  11. Object Number: 333652  Size: SH
  12. Remove the engine oil pressure sensor gauge sensor fitting.

  13. Object Number: 69847  Size: SH
  14. Remove the square socket plugs (engine block oil gallery) from the rear of the engine block.

  15. Object Number: 182841  Size: SH
  16. Remove the left side rear and left rear top engine block oil gallery plugs.

  17. Object Number: 182838  Size: SH
  18. Remove the front engine block oil gallery plugs from the engine block and discard.
  19. Insert a 3/8 x 26 in. rod into the rear oil gallery holes in order to drive out the front engine block oil gallery plugs.