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HOMESERVICE MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 58 (ENGINE COOLING)REPAIR INSTRUCTIONSWATER PUMP REPLACEMENTREMOVAL PROCEDURE
2008 Pontiac Grand Prix Base

Removal Procedure

2008 Pontiac Grand Prix BaseSECTION Removal Procedure
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: MAF/IAT Sensor & Air Cleaner Assembly
    GM832908Courtesy of GENERAL MOTORS CORP.
  1. Drain the cooling system. Refer to Draining and Filling Cooling System .
  2. Loosen the air cleaner outlet duct clamps at the following locations:
    • Throttle body
    • Mass airflow/intake air temperature (MAF/IAT) sensor
  3. Remove the radiator inlet hose clip from the outlet duct.
  4. Remove the air cleaner outlet duct.
    5. Fig 2: View Of Vent Inlet Hose At Throttle Body
    GM659465Courtesy of GENERAL MOTORS CORP.
  5. Remove the radiator vent inlet hose from the radiator hose clips.
    6. Fig 3: View Of Inlet Hose & Water Pump
    GM659418Courtesy of GENERAL MOTORS CORP.
  6. Reposition the inlet hose clamp at the water pump.
  7. Remove the inlet hose from the water pump.
  8. Remove the fan blade. Refer to Fan Replacement .
  9. Remove the accessory drive belt. Refer to Drive Belt Replacement - Accessory .
    10. Fig 4: View Of Outlet Hose & Water Pump
    GM659509Courtesy of GENERAL MOTORS CORP.
  10. Reposition the outlet hose clamp at the water pump.
  11. Remove the outlet hose from the water pump.
    12. Fig 5: View Of Surge Tank Outlet Hose To Water Pump
    GM659180Courtesy of GENERAL MOTORS CORP.
  12. Reposition the surge tank outlet hose clamp at the water pump.
  13. Remove the surge tank outlet hose from the water pump.
    14. Fig 6: View Of Heater Inlet Hose At Water Pump
    GM660665Courtesy of GENERAL MOTORS CORP.
  14. Reposition the heater inlet hose clamp at the water pump.
  15. Remove the heater inlet hose from the water pump.
    16. Fig 7: View Of Water Pump, Gaskets & Bolts
    GM260121Courtesy of GENERAL MOTORS CORP.
  16. Remove the water pump bolts.
  17. Remove the water pump and gaskets.
  18. Discard the water pump gaskets.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.