Optima V6-2.7L VIN 4 (2007)
Thermostat: Testing and Inspection
INSPECTION
THERMOSTAT
1. Immerse the thermostat in water and gradually heat water.
2. Check the valve opening temperature.
Valve opening temperature : 82°C (177°F)
Full opening temperature : 95°C (205°F)
If the valve opening temperature is not as specified, replace the thermostat.
3. Check the valve lift.
Valve lift : Min. 10mm (0.4in.) at 95°C (205°F)
If the valve lift is not as specified, replace the thermostat.
