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What could be causing the heater on a 1998 XLT Ford Expedition to blow cold air?
Wiki User
∙ 14y ago
if you have the heat on in any vehicle, and there is only cold air coming out of the vents (providing the engine coolant temp gauge shows that the engine is warm) then there is no antifreeze flowing through the heater core, this may be caused by a couple of things: first, there might be a leak in the heater core, but usually antifreeze will be leaking into the heater core housing and will be visible, or there might not be enough antifreeze in the vehicles's radiator, or the water pump might be damaged and not circulating coolant. hope this helps and good luck!
Wiki User
∙ 14y ago
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