1998 V6 Taurus No heat!!!! What could it be???
I have no heat...it blows warm air for 3 seconds and then is cold. I have checked the blower motor, replaced the thermostat, car heats up to normal operating temperature, replaced the water pump, thoroughly flushed including back flushing the heater core...all debris and little rust were cleaned out...no clogs...could it be the blend actuator door??? Yet I can hear it move...maybe it's not opening all the way??? Could it be my cooling temperature sensor??? Any ideas are greatly appreciated!!