Celica GT L4-1.8L (1ZZ-FE) (2001)
HINT: The thermostat is numbered with the valve opening temperature.
a. Immerse the thermostat in water and gradually heat the water.
b. Check the valve opening temperature.
Valve opening temperature: 80.0 - 84.0°C (176 - 183°F)
If the valve opening temperature is not as specified, replace the thermostat.
c. Check the valve lift.
Valve lift: 10 mm (0.39 inch) or more at 90°C (194°F)
If the valve lift is not as specified, replace the thermostat.
d. Check that the valve is fully closed when the thermostat is at low temperatures (below 40°C (104°F)).
If not closed, replace the thermostat.
INSTALLATION
1. PLACE THERMOSTAT IN CYLINDER BLOCK
a. Install a new gasket to the thermostat.
b. Install the thermostat with the jiggle valve upward.
HINT: The jiggle valve may be set within 10° of either side of the prescribed position.
2. INSTALL WATER INLET