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Why does your ford windstar 2003 blow hot air when idling and cold air when driving?
Wiki User
∙ 11y ago
Could be a number of reasons for this condition. I would check the coolant level. A low coolant level could cause your heater to blow cold air when the engine is warm. Is the engine warm? If the engine is fluctuating temp it could be a faulty thermostat. Hope this helps.
Wiki User
∙ 11y ago
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Why does the heat blow cold while idling and warm when driving?
Poor circulation probably due to a restricted (plugged up) heater core.
Why does the heater in my 1995 Ford Windstar only blow hot air while idling It blows cold air while driving. Problem seems to have started overnight. What's up?
That's a toughy... Water pump maybe(?)If not, be sure to see "Related Questions" below for more diagnosing/trouble-shooting/fixing ideas and information.
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Low coolant, failed thermostat, partially plugged heater core...............
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Yuo have a bad aux water pump about $150 at the dealer :) Danny K
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When was Watch the Wind Blow By created?
Watch the Wind Blow By was created on 2003-10-27.
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Possibly defective thermostat. It sounds like it is opening up a bit with increased pressure caused by higher engine revs - when idling, the pressure decreases and the thermostat valve closes. Just a thought, anyway.
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