Mopar 68210961AA Engine Cooling Water Pump

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A failure in the water pump can cause engine damage. To check for leaks, use a flashlight to find the weep hole on the pump from underneath. Shaft wear can be felt if the water pump pulley is rocked up and down. It is possible for a water pump to be bad, even if it doesn't howl or leak water; the only way to check is to remove the pump for examination.

Disconnect the cable(s) from the negative battery terminal(s).

Drain the cooling system. Remove the drivebelt. For the 3.6L engine, disconnect the IAT sensor electrical connector and remove the air filter housing. Disconnect the heater and radiator hoses at the water pump. Remove the idler pulley mounting bolt and idler pulley. Remove the water pump mounting bolts, making sure to identify the four bolts that bolt directly to the timing chain cover. Remove the pump and discard the gasket. For the 3.7L V6 and 4.7L V8 engines, detach the engine-mounted viscous fan assembly from the water pump. Remove the radiator-mounted electric fan. Disconnect the lower radiator hose from the water pump. For the 5.7L and 6.4L Hemi engine, remove the air filter housing, the air inlet ducts, and the resonator brackets. Remove the fan assembly. Disconnect the radiator hoses from the engine. For the 6.7L diesel engine, remove the air filter housing and the air intake pipe. Remove the alternator. For all engines, remove the bolts and detach the water pump from the engine.

There are several ways to check the operation of the water pump while it's installed on the engine. If the pump is defective, it should be replaced with a new or rebuilt unit. Water pumps are equipped with weep or vent holes. If a failure occurs in the pump seal, coolant will leak from the hole. In most cases, you'll need a flashlight to find the hole on the water pump from underneath to check for leaks.