You need to disconnect the negative battery cable, remove the air cleaner assembly, drain the engine cooling system, remove the air intake duct, the coolant recovery reservoir, the upper fan shroud, the fan clutch assembly, the drive belt, the
Water Pump pulley mounting bolts and the water pump pulley, disconnect the radiator outlet hose and the by-pass hose from the water pump, remove the heater outlet hose, the water pump mounting bolts and the water pump and the gasket, clean and inspect the sealing surfaces of the engine block and the water pump mounting bolts, and inspect the threads.