GM 12693373 Water Pump Kit

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The steps involved in removing and installing a water pump on a V6 or V8 model are as follows: 1. Disconnect the battery cable. 2. Drain the coolant. 3. Remove the air intake duct and resonator assembly. 4. Remove the drivebelt. 5. Remove the water pump pulley. 6. Remove the radiator hoses and expansion tank hose (V6) or water pump inlet and outlet hoses (V8). 7. Unbolt the water pump. 8. Remove all traces of the old gasket seal from the mounting surface on the engine and water pump.

A failure in the water pump can cause serious engine damage due to overheating. If a failure occurs in the shaft seal on the water pump, a coolant leak can usually be seen coming from that area. Most water pumps are equipped with small weep or vent holes that can be checked for leaks using a flashlight and a mirror. If the water pump shaft bearings fail, there may be a howling sound near the water pump while it's running. A quick water pump performance check is to turn the heater on. Removing and installing a water pump on a V6 or V8 model involves disconnecting the battery cable, draining the coolant, removing the air intake duct and resonator assembly, removing the drivebelt, removing the water pump pulley, removing the radiator hoses and expansion tank hose (V6) or water pump inlet and outlet hoses (V8), unbolt the water pump, and removing all traces of the old gasket seal from the mounting surface on the engine and water pump. Installation involves cleaning the mounting bolt threads and threaded holes, comparing the replacement pump with the old one, placing the gaskets and water pump into position, tightening the bolts to the torque specifications, and refilling the engine with coolant and checking for leaks.