THERMOSTAT(for Automatic Transmission) INSPECTION

PROCEDURE


  1. INSPECT THERMOSTAT


    1. Immerse the thermostat in water and then gradually heat the water.

      Tech Tips

      Hold the thermostat with a wire or the like, so that the thermostat does not come into contact with the bottom of the container.

    2. A004K38

      Check the valve opening temperature of the thermostat.

      Valve opening temperature
      48 to 52°C (118 to 126°F)

      Tech Tips

      If the valve opening temperature is not as specified, replace the thermostat.

    3. A004I45E34
      Text in Illustration
      *a Valve Lift

      Check the valve lift.

      Valve lift
      6.0 mm (0.236 in.) or more at 63°C (145°F)

      Tech Tips

      If the valve lift is not as specified, replace the thermostat.

    4. Check that the valve is fully closed when the water inlet with thermostat is at low temperatures (below 45°C (113°F)).

      Tech Tips

      If it is not fully closed, replace the thermostat.