Sienna AWD V6-3.5L (2GR-FE) (2007)
Thermostat: Specifications
Thermostat
Valve opening temperature ....................................................................................................................................................... 80 to 84°C (176 to 183°F)
Valve is fully closed .......................................................................................................................................................................... below 40°C (104°F)
Valve lift (at 95°C (203°F)) ................................................................................................................................................ 7.7 mm (0.303 inch) or more