Ford 2S7Z-8501-BG Water Pump Assembly

A failure in the water pump can cause serious engine damage due to overheating. If a failure occurs in the pump seal, coolant will leak from the front cover (four cylinder models) or the water pump housing (V6 models). Water pumps are equipped with weep or vent holes. It is possible to check the water pump weep hole using a flashlight. If a failure occurs in the pump seal, coolant will leak from the hole. Use the flashlight to find the vent hole on the water pump and check for leaks. If the water pump shaft bearings fail, there may be a howling sound near the water pump while it's running. With the engine off, shaft wear can be felt if the water pump pulley is rocked up-and-down. Don't mistake drivebelt slippage, which causes a squealing sound, for water pump bearing failure. A quick water pump performance check is to put the heater on. If the pump is failing, it won't be able to efficiently circulate hot water all the way to the heater core as it should.

To remove the water pump from the engine. Remove the water pump pulley.Remove the bolts attaching the water pump to the engine block and carefully remove the pump.If the water pump is stuck, gently tap it with a soft-faced hammer to break the seal.Clean the bolt threads and threaded holes in the engine and remove all corrosion and sealant.Remove all traces of old gasket material from the sealing surfaces.

On V6 models, the following additional steps are required. Remove the air filter housing and the water pump drivebelt tensioner. Remove the water pump mounting bolts and clean all gasket and O-ring surfaces on the pump and the housing. Remove the outlet air duct from the air filter housing. Remove the water pump drivebelt and the lower radiator hose from the thermostat housing.

Drivebelt slippage, which causes a squealing sound.