Inspection After Removal

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

Place a thread so that it is caught in the valves of the thermostat. Immerse fully in a container filled with water. Heat while stirring.

Courtesy of NISSAN NORTH AMERICA, INC.

The valve opening temperature is the temperature at which the valve opens and the thermostat falls from the thread.
Continue heating. Check the full-open lift amount.
NOTE: The full-open lift amount standard temperature for the thermostat is the reference value.

After checking the full-open lift amount, lower the water temperature and check the valve closing temperature.

Thermostat	Standard Values
Valve opening temperature	Refer to Thermostat .
Full-open lift amount	Refer to Thermostat .
Valve closing temperature	Refer to Thermostat .

If valve setting at measured values is out of standard range, replace thermostat.