Thermostat Inspection

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Visually check that the thermostat valve is closed.
Place the thermostat and a thermometer in water.
WARNING:
- During inspection, the thermostat and water are extremely hot and they can cause burns. Do not touch the thermostat and water directly.

Heat the water and check the following.

If not as specified, replace the thermostat.

HEAT WATER SPECIFICATION

Condition		Specification
Initial-opening temperature	°C {°F}	83.5-86.5 {183-187}
Full-open temperature	°C {°F}	100 {212}
Full-open lift	mm {in}	8.5 {0.33}

Fig 1: Identifying Full-Open Lift

Courtesy of MAZDA MOTORS CORP.