Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Drain the cooling system. Refer to Draining and Filling Cooling System .
Loosen the air cleaner outlet duct clamps at the following locations:
- Throttle body
- Mass airflow/intake air temperature (MAF/IAT) sensor
Remove the radiator inlet hose clip from the outlet duct.
Remove the air cleaner outlet duct.

Fig 1: Remove Air Cleaner Outlet Duct
Courtesy of GENERAL MOTORS CORP.
If necessary, remove the engine sight shield. Refer to ENGINE SIGHT SHIELD REPLACEMENT (4.8L, 5.3L, and 6.0L Engines) or ENGINE SIGHT SHIELD REPLACEMENT (6.0L ENGINE W/RPOS Y91 and Z88) .
Remove the radiator vent inlet hose from the radiator hose clips.

Fig 2: Remove Radiator Vent Inlet Hose
Courtesy of GENERAL MOTORS CORP.
Reposition the inlet hose clamp at the water pump.
Remove the inlet hose from the water pump.
Remove the fan blade. Refer to Fan Replacement .
Remove the accessory drive belt. Refer to DRIVE BELT REPLACEMENT - ACCESSORY .

Fig 3: Remove Inlet Hose
Courtesy of GENERAL MOTORS CORP.
Reposition the outlet hose clamp at the water pump.
Remove the outlet hose from the water pump.

Fig 4: Remove Outlet Hose
Courtesy of GENERAL MOTORS CORP.
Reposition the surge tank outlet hose clamp at the water pump.
Remove the surge tank outlet hose from the water pump.

Fig 5: Remove Surge Tank Outlet Hose
Courtesy of GENERAL MOTORS CORP.
Reposition the heater inlet hose clamp at the water pump.
Remove the heater inlet hose from the water pump.

Fig 6: Remove Heater Inlet Hose
Courtesy of GENERAL MOTORS CORP.
Remove the water pump bolts.
Remove the water pump and gaskets.
Discard the water pump gaskets.

Fig 7: Remove Water Pump, Gaskets & Bolts
Courtesy of GENERAL MOTORS CORP.