My wife has a 2001 Ford Taurus Flex fuel.But as of now it doesnt blow hot air. The only way to get any heat is to set the selector to vent and even then its just barely warm. If I turn the temp selector to cold it gets really cold,so that seems to be working. Here's what I have done so far: 1.radiator flush 2.New thermostat 3.Flushed only the heater core to make sure it wasnt clogged,and I did clamp off the bypass hose. 4.Listened for the blend door...seems to be working. 5.The blower is working fine. Im all out of ideas and honestly dont know much more than that. Any Ideas?