A/c runs in all positions except off.hoses are hot but no heat
The difference here is important...., are you sure the air conditioning is running or is the heater just blowing cold air ? I would guess just cold air which may be caused by several things. First , check the radiator level (when engine is cold) to make sure its full. If it is, then disconnect heater lines and give it a good flushing in both directions because in all probability you have either a plugged heater core or lines. The taurus of that era had a weird heater bypass system designed by some escapee from a mental institution. People have solved insufficient heat problems by removing the by-pass and capping off the ends, which increased water flow to heater. Also, you could check the blend door which should be visible if you remove the ashtray assembly. You should be able to see the shaft turning as you adjust the knob from hot to cold. Try these things first as the probability of a cure to your problem is high.
Testimonial: "Thanks Radiator had a slow leak so repaired and refilled.Heat is now working."
If it's a Ghia Fairmont it may have climate control , and. Needs resetting if the battery has been disconnected in which case follow the procedure in the owners hand book .
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Hi tom johnston, I want to help you with your question, but I need more information from you. Can you please add details in the comment box? Also do you have automatic climate control?
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