Thermostat - Mechanical Test
WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the thermostat housing.
- Immerse the thermostat housing and thermostat in a boiling antifreeze and water mixture.
- See the GENERAL SPECIFICATIONS CHART for thermostat opening temperatures.