Inspection [12/2013 - ]: Procedure

HINT: 

The valve opening temperature is inscribed on the thermostat.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Immerse the thermostat in water, and then gradually heat the water.
2. Check that the valve of the thermostat opens at the specified temperature.

   Standard Valve Opening Temperature

   80 to 84°C (176 to 183°F)

   If the valve does not open as specified, replace the thermostat.

3. Check the valve lift.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Valve Lift

   Standard Valve Lift

   10 mm (0.394 in.) or more at 95°C (203°F)

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

4. Check that the valve is fully closed when the thermostat is at low temperature (below 77°C (171°F)).

   If not fully closed, replace the thermostat.