2014 Ford Fusion se has a leak in cooling system and temperature gauge is all the way on hot. Even without the engine running. Coolant is disappearing but I don't where it's going. Sensor says engine coolant overtemperature. Last time that sensor said this a gasket was blown. And I had just bought it in 2015 when after 3mths a head was blown. I just hope it's not that again cause I no longer have a warranty for that. Please help!!!!!