Express 4500 V8-6.0L (2010)
Water Pump: Service and Repair
Water Pump Replacement (V8)
Removal Procedure
1. Remove the air cleaner outlet assembly. Refer to Air Cleaner Assembly Replacement (See: Tune-up and Engine Performance Checks/Air Cleaner
Housing/Service and Repair).
2. Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill) (See: Cooling System/Service and
Repair/Procedures/Cooling System Draining and Filling (Static Fill)) Cooling System Draining and Filling (Vac N Fill) (See: Cooling
System/Service and Repair/Procedures/Cooling System Draining and Filling (Vac N Fill)).
3. Reposition the radiator vent inlet hose clamp (1) at the coolant air bleed pipe fitting.
4. Remove the radiator vent inlet hose (2) from the coolant air bleed pipe fitting.
5. Reposition the radiator inlet hose clamp (3) at the water pump.
6. Remove the radiator inlet hose from the water pump.