For 1990-2009 cars

1. Remove the old gasket from the water pump sealing surfaces. Refer to Replacing Engine Gaskets .

2. Clean all dirt and debris from the water pump housing.
3. Inspect the water pump for the following:

• | Gasket sealing surfaces for excessive scratches or gouging

• | Hose sealing surfaces for scratches or gouging

• | Restrictions within the internal coolant passages

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

• | A loose belt pulley or a pulley with excessive wear or scoring on the belt tracking area

• | 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 occurs, dripping, with the engine running and the cooling system pressurized, replace the water pump.