Where is the thermostat on 2003 Duratec DOHC Motors?

On a 2003 Duratec DOHC motor, the thermostat is typically located in a housing on the engine near the top, where the upper radiator hose connects to the engine. To access it, you'll generally need to remove the upper radiator hose and the thermostat housing bolts. It's advisable to consult a repair manual for specific details and diagrams related to your vehicle model.