WATER PUMP ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT FOR COOLANT LEAK

    Tech Tips


    • Before performing this inspection, check that there is no coolant leaking from any parts other than the engine water pump assembly. If there are leaks, inspect those areas.

    • Perform this inspection when the engine is cold.


    1. Visually inspect the engine compartment for the following conditions:


      1. There is a large amount of engine coolant in the engine compartment or on the underside of the hood near the V-ribbed belt.

      2. Engine coolant is dripping from around the engine water pump assembly.

      3. The engine coolant level in the radiator reserve tank assembly is below the low line and there are traces of leakage around the engine water pump assembly.

        If any of the above conditions exist, replace the engine water pump assembly.

        If none of the above conditions exist, perform the following inspection (inspection of the area around the engine water pump assembly).

    2. Remove the V-ribbed belt Click here.

    3. Separate the water pump pulley Click here.

      Tech Tips

      Move the water pump pulley so that the drain plug can be reached.

    4. Inspect the area around the engine water pump assembly.

      Tech Tips

      Check for deposits around the drain plug of the engine water pump assembly.


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        Text in Illustration
        *1 Drain Plug

        Press a piece of paper towel against the drain plug and check that the paper towel is not wet and that there are no deposits on the lip of the drain plug.

        If the paper towel is wet, replace the engine water pump assembly.

        If the paper towel is not wet, thoroughly clean the area around the engine water pump assembly.

    5. Install the water pump pulley Click here.

  2. INSPECT ENGINE WATER PUMP ASSEMBLY


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      Turn the pulley and check that the water pump bearing moves smoothly and quietly.

      If necessary, replace the engine water pump assembly.

    2. Install the V-ribbed belt Click here.