WATER PUMP ON-VEHICLE INSPECTION


  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. 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 coolant in the engine compartment or on the underside of the hood near the V-ribbed belt.

      2. Liquid coolant is dripping from around the engine water pump.

      3. The coolant level in the reservoir is below the LOW line and there are traces of leakage around the engine water pump.

        Tech Tips


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

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

    2. Inspect the area around the engine water pump.

      Tech Tips

      Check for deposits around the drain hole of the engine water pump.


      1. A01GYWHE02

        Press a thin paper towel against the coolant (solid matter) adhering to the drain hole or the edge of the drain hole, and check the condition of the thin paper towel.

        Tech Tips


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

        • If the thin paper towel is dry, thoroughly clean the area around the engine water pump.

  2. INSPECT ENGINE WATER PUMP ASSEMBLY


    1. Remove the V-ribbed belt Click here.

    2. A01GZ5V

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

      If necessary, replace the engine water pump assembly.

    3. Install the V-ribbed belt Click here.