GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 832908  Size: SH
  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Loosen the air cleaner outlet duct clamps at the following locations:
  3. • Throttle body
    • Mass airflow (MAF) intake air temperature (IAT) sensor
  4. Remove the radiator inlet hose clip from the outlet duct.
  5. Remove the air cleaner outlet duct.

  6. Object Number: 659465  Size: SH
  7. Remove the radiator vent inlet hose from the radiator hose clips.

  8. Object Number: 659418  Size: SH
  9. Reposition the inlet hose clamp at the water pump.
  10. Remove the inlet hose from the water pump.
  11. Remove the fan blade. Refer to Fan Replacement .
  12. Remove the accessory drive belt. Refer to Drive Belt Replacement - Accessory .

  13. Object Number: 659509  Size: SH
  14. Reposition the outlet hose clamp at the water pump.
  15. Remove the outlet hose from the water pump.

  16. Object Number: 659180  Size: SH
  17. Reposition the surge tank outlet hose clamp at the water pump.
  18. Remove the surge tank outlet hose from the water pump.

  19. Object Number: 660665  Size: SH
  20. Reposition the heater inlet hose clamp at the water pump.
  21. Remove the heater inlet hose from the water pump.

  22. Object Number: 260121  Size: SH
  23. Remove the water pump bolts.
  24. Remove the water pump and gaskets.
  25. Discard the water pump gaskets.

Installation Procedure

Important: All gaskets surfaces are to be free of oil or other foreign material during assembly.

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 260121  Size: SH
  1. Install the water pump and NEW gaskets.
  2. Install the water pump bolts.
  3. Tighten

    1. Tighten the water pump bolts a first pass to 15 N·m (11 lb ft).
    2. Tighten the water pump bolts a final pass to 30 N·m (22 lb ft).

    Object Number: 660665  Size: SH
  4. Install the heater inlet hose to the water pump.
  5. Position the heater inlet hose clamp at the water pump.

  6. Object Number: 659180  Size: SH
  7. Install the surge tank outlet hose to the water pump.
  8. Position the surge tank outlet hose clamp at the water pump.

  9. Object Number: 659509  Size: SH
  10. Install the outlet hose to the water pump.
  11. Position the outlet hose clamp at the water pump.
  12. Install the accessory drive belt. Refer to Drive Belt Replacement - Accessory .
  13. Install the fan blade. Refer to Fan Replacement .

  14. Object Number: 659418  Size: SH
  15. Install the inlet hose to the water pump.
  16. Position the inlet hose clamp at the water pump.

  17. Object Number: 659465  Size: SH
  18. Install the engine vent inlet hose to the radiator hose clips.

  19. Object Number: 832908  Size: SH

    Important: Align the arrow at the throttle body end of the duct with the throttle body attaching stud.

  20. Install the air cleaner outlet duct.
  21. Install the radiator inlet hose clip to the outlet duct.
  22. Tighten the air cleaner outlet duct clamps at the following locations:
  23. • Throttle body
    • MAF/IAT sensor

    Tighten
    Tighten the air cleaner outlet duct clamp screws to 7 N·m (62 lb in).

  24. Fill the cooling system. Refer to Cooling System Draining and Filling .