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I haven't done it, but I've heard there's a vaccuum solenoid in the rear box (down by the floor) that sticks.

Mine does this sometimes too, but not often enough that I've gone ahead and ripped the back wall apart. I can usually fix it by switching the rear control from cold to hot to cold to hot, etc. This, I think, loosens up that solenoid.

Maybe someday when it breaks altogether, or the kids start complaining loud enough, I'll fix it ;)

Good luck!

AnswercI have same problem on my 98 replace the temperature switch is the one of three in the middle of dash the one with red and blue sticker(is a vaccum switch)


Change the rear cool/heat switch on the front panel, furthest on right. It's about $27 from Ford and easy to replace. Two screws and clips hold the face cover, 4 screws hold the panel in and one screw holds the switch. Remove the vacuum and electrical connectors.

AnswerYou probably have a faulty temp blend door motor assembly on the front unit. It is located directly behind the radio, way back in on the front of the heater case.

Could also be the door inside behind that assembly is broken. The door lifts to allow hot air and drops to close to send cold air. I am in the process of fixing mine and it ain't pretty, but cheaper to get the assembly than to replace the door which requires the whole assembly to be replaced. Lots of luck with it.

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โˆ™ 2011-09-13 23:42:48
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Q: Why does 98 windstar blow cold air from front and hot air from rear?
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