Water Pump Cleaning and Inspection

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Water Pump

Courtesy of GENERAL MOTORS CORP.

Inspect the water pump (300) for the following conditions:

Gasket sealing surfaces for excessive scratches or gouging
Restrictions within the coolant passages
Excessive side-to-side play in the pulley shaft
A loose belt pulley or a pulley with excessive wear in the belt tracking area
Leakage at the vent hole
A stain around the vent hole is acceptable. If leakage occurs, such as dripping with the engine running or the cooling system pressurized, replace the water pump.