Cadillac 19168610 Engine Coolant Pump Kit

Clean the sealing surfaces on both the engine block and the water pump.

The first method is to start the engine and warm it up to normal operating temperature, then squeeze the upper radiator hose. If the water pump is functioning properly, you should feel a pressure surge when releasing the hose.

To replace the water pump, various components such as the air cleaner assembly, radiator shroud, fan/clutch assembly, and drive belt must be removed.

Clean the sealing surfaces on both the engine block and the water pump. Wipe the mating surfaces with a rag saturated with lacquer thinner or acetone. Apply a thin layer of RTV sealant to the engine block's mounting surfaces and install new water pump gaskets. Apply a thin layer of RTV sealant to the water pump's mounting surfaces. Place the water pump in position and install the bolts and studs finger-tight. Work carefully so the gaskets don't slip out of position. Remember to replace any mounting brackets secured by the water pump mounting bolts. Install the water pump pulley and fan assembly and tighten the pulley nuts by hand. Install the lower radiator hose, heater hose, and hose clamps. Tighten the hose clamps securely. Install the drive belt and tighten the fan mounting nuts securely. Add coolant to the specified level in the cooling system. Connect the cable to the negative terminal of the battery. Start the engine and check the water pump and hoses for any signs of leaks.

To replace the water pump, various components such as the air cleaner assembly, radiator shroud, fan/clutch assembly, and drive belt must be removed.

If the weep hole is leaking, the water pump should be replaced immediately.