GM Service Manual Online
For 1990-2009 cars only

Object Number: 896996  Size: SH

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.