Component Description: Thermostats
WARNING: This page is about a different car, the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
The engine thermostat is located in the coolant crossover at the front of the engine and contains two thermostatic devices in one assembly. The thermostat regulates the engine coolant temperature by controlling the flow of coolant through the radiator. The two thermostatic devices do not open at the same coolant temperature. The opening temperatures are staggered with the back one opening at 90 deg.C (194 deg.F), and the front one opening at 94 deg.C (201 deg.F). The transmission cooler thermostat is located at the transmission cooler outlet connection and regulates the coolant temperature flow through the cooler. The opening temperature is 45 deg.C (113 deg.F).