For 1990-2009 cars only
- Rotate the water pump. The water pump should turn straight and smoothly. If the hub wobbles, is noisy or feels "lumpy" when turned, replace the water pump.
- Examine the water pump shaft on the pulley side of the pump. If coolant leakage is evident, replace the water pump.
Notice: Do not immerse the water pump in solvent. The solvent may enter the water pump's permanently lubricated bearings and cause premature bearing failure.
