Question about 1998 Ford Windstar

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Front ac blows out defrost and rear ac blows hot air

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Where Can I download a .pdf drawing for the under the dash A/C components for a 1998 Ford Windstar. I am trying to locate the vaccum modulators. Ford Part# YH-571, YH-572 and YH-573.

Posted on Jun 23, 2011

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Replace the switches. They run by vaccum to switch between settings. $15 each, and 10 minutes of your time.

Posted on Aug 01, 2009

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The vacuum line in broken, check for same, start fromthe engine compartment, check to make sure the a/c doors are not jammed. check all fuse and relays

Posted on Jul 31, 2009

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http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-no-heat-on-passenger.html

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These will help.

Thanks.

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1 Answer

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The rear defrost is an electric switch for the defroster in the rear glass.
If you turn on the ac and do not get cold air, the first thing to check is if the compressor is running. If not, you could be low on freon or have an electrical problem in the circuit for the ac clutch.
If the compressor is running and one of the ac lines is ice cold, you could have a blend door problem under the dash.

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1 Answer

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1 Answer

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If you still get cold air out of the rear vents but the front only blows hot air you may have a bad temp door actuator in the dash, it may be stuck on hot and not able to move to cold air. However if you are low on freon with a truck that has front and rear ac then there will be a temp diff between the two. If it is hot air out the front like the heat is on then you have that actuator problem but if it is cool air about the same as the outside air temp then you may be low on freon.

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