THERMOSTAT INSPECTION

CAUTION / NOTICE / HINT

Tech Tips


  • Use the same procedure for RHD and LHD vehicles.

  • The procedure listed below is for LHD vehicles.

PROCEDURE


  1. INSPECT WATER INLET WITH THERMOSTAT SUB-ASSEMBLY


    1. Check the valve opening.

      Tech Tips

      The valve opening temperature is inscribed on the water inlet with thermostat sub-assembly.

      B005WTT

      1. B005TKW

        Add 15 cc (0.9 cu.in.) of water to the water inlet with thermostat sub-assembly from the inlet pipe side.

      2. Confirm that water does not flow out from the valve side of the water inlet with thermostat sub-assembly.

        If water flows out from the valve side of the water inlet with thermostat sub-assembly, replace the water inlet with thermostat sub-assembly with a new one.

      3. B005V7R

        Immerse the water inlet with thermostat sub-assembly in water that is between 87°C (185°F) and 91°C (196°F) for 5 minutes or more.

        Note


        • Make sure that the end of the inlet pipe of the water inlet with thermostat sub-assembly is not facing downward.

        • Make sure to immerse the water inlet with thermostat sub-assembly in the water as shown in the illustration.

      4. B005WR5

        Leave the water inlet with thermostat sub-assembly at ambient temperature for 5 minutes so that the valve closes.

        Note

        Make sure that the end of the inlet pipe of the water inlet with thermostat sub-assembly is not facing downward.

      5. Check that the water that was added to the water inlet with thermostat sub-assembly has completely flowed out.

        If the water that was added to the water inlet with thermostat sub-assembly has not completely flowed out, replace the water inlet with thermostat sub-assembly with a new one.