Ford 5L8Z-8501-AA Pump Assembly - Water

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Disconnect the cable from the negative battery terminal. Drain the cooling system. Remove the drivebelt on four cylinder models or the water pump drivebelt on V6 models. Loosen the right front wheel lug nuts. Raise the vehicle and secure it on jackstands. Remove the right front wheel and the fender splash shield. Remove the water pump pulley. Remove the bolts attaching the water pump to the engine block and remove the pump from the engine. If the water pump is stuck, gently tap it with a soft faced hammer to break the seal. Clean the bolt threads and the threaded holes in the engine and remove all corrosion and sealant. Remove all traces of old gasket material from the sealing surfaces. Remove the air filter housing. Remove the water pump drivebelt tensioner. Remove the water pump mounting bolts. Clean all the gasket and 0-ring surfaces on the pump and the housing. Remove the outlet air duct from the air filter housing. Remove the water pump drivebelt. Remove the lower radiator hose from the thermostat housing. Remove the three mounting bolts, then separate the water pump from the housing. Discard the water pump gasket. Clean the sealing surfaces of the housing and the pump. Remove all traces of old gasket. Compare the new pump to the old one to make sure that they're identical. Apply a thin film of ATV sealant to hold the new gasket in place during installation. Install the water pump bolts and tighten them to the torque listed in the specifications. The remainder of installation is the reverse of removal. Refill the cooling system. Reconnect the battery. After you're done, the Powertrain Control Module (PCM) must relearn its idle and fuel trim strategy for optimum driveability and performance. Operate the engine to check for leaks.

Disconnect the cable from the negative battery terminal. Drain the cooling system. Remove the drivebelt on four cylinder models or the water pump drivebelt on V6 models. Loosen the right front wheel lug nuts. Raise the vehicle and secure it on jackstands. Remove the right front wheel and the fender splash shield. Remove the water pump pulley. Remove the bolts attaching the water pump to the engine block and remove the pump from the engine. If the water pump is stuck, gently tap it with a soft faced hammer to break the seal. Clean the bolt threads and the threaded holes in the engine and remove all corrosion and sealant. Remove all traces of old gasket material from the sealing surfaces. Remove the air filter housing. Remove the water pump drivebelt tensioner. Remove the water pump mounting bolts. Clean all the gasket and 0-ring surfaces on the pump and the housing. Remove the outlet air duct from the air filter housing. Remove the water pump drivebelt. Remove the lower radiator hose from the thermostat housing. Remove the three mounting bolts, then separate the water pump from the housing. Discard the water pump gasket. Clean the sealing surfaces of the housing and the pump. Remove all traces of old gasket. Compare the new pump to the old one to make sure that they're identical. Apply a thin film of ATV sealant to hold the new gasket in place during installation. Install the water pump bolts and tighten them to the torque listed in the specifications. The remainder of installation is the reverse of removal. Refill the cooling system. Reconnect the battery. After you're done, the Powertrain Control Module (PCM) must relearn its idle and fuel trim strategy for optimum driveability and performance. Operate the engine to check for leaks.

They are used to allow coolant to escape if there is a failure in the pump seal.

Serious engine damage can occur due to overheating.