Water Pump Cleaning and Inspection 6.2L

1. Remove the old gasket from the water pump sealing surfaces. Refer to Replacing Engine Gaskets .
2. Clean all excess dirt and debris from the water pump housing.
3. Inspect the water pump (1) for the following conditions:

•	Gasket and hose sealing surfaces for excessive scratches or gouging

•	Restrictions within the internal coolant passages

•	Excessive side-to-side play in the pulley shaft

•	Leakage at the water outlet housing or rear cover gasket

•	Leakage at the water pump vent hole

•	A stain around the vent hole is acceptable. If leakage, dripping, occurs with the engine running and the cooling system pressurized, replace the water pump.

•	Wear or damage in the belt tracking area of the pulley