Thermostat Inspection

Engine Hybrid System. Corolla. Zre142 Aze141
2Az-Fe Cooling. Corolla. Zre142 Aze141

  1. INSPECT THERMOSTAT

Thermostat -- Inspection



1. INSPECT THERMOSTAT


    Corolla. Zre142 Aze141.2Az-Fe Cooling.Cooling System.Thermostat Inspection

  1. The valve opening temperature is inscribed on the thermostat.



    Corolla. Zre142 Aze141.2Az-Fe Cooling.Cooling System.Thermostat Inspection

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

  1. Check the valve opening temperature of the thermostat.

    Standard valve opening temperature:
    80 to 84°C (176 to 183°F)
    If the valve opening temperature is not as specified, replace the thermostat.


    Corolla. Zre142 Aze141.2Az-Fe Cooling.Cooling System.Thermostat Inspection

  1. Check the valve lift.

    Standard valve lift:
    10 mm (0.39 in.) or more at 95°C (203°F)
    If the valve lift is not as specified, replace the thermostat.

  1. Check that the valve is fully closed when the thermostat is at low temperatures (below 77°C (171°F)).
    If it is not fully closed, replace the thermostat.