i have a 99 expedition 5.4L the ECT (engine coolant temp.) sensor is shorted out and i need to change it .. my question is can anyone tell me where it's located ?? i have already changed the CHT (cylinder head temp.) sensor , all the books and people i have referred too all are dead ends .. (behind the alternator , in thermostat housing , and in driver head by the exhaust manifold ) all are dead ends .. can anyone help me find the sensor ??? dealer tells me they will locate it for $250 dollars and that's pathetic highway robbery .. do to the sensor telling ECU the engines cold it has increased my fuel consumption to raise the engine to its operating temp. a difference from 18/19 MPG to 9.2/9.7 MPG .. if it doesn't have an ECT then can u tell me how it read temp. and how to repair it .. please ..