I seem to be getting some where with my car, the garage over last few days have be testing it, with out the thermostat and we seem to have circulation all the way through the car and little driving it around town m, so we could be on for new genuine Ford one on Monday they said they need to drive it up the park way for a bit to see if the car over heats again, if it does then I may have head gasket problem will my car get hot without the thermostat connected.