air flow problem
Post Fiend
Joined: Feb 2000
Posts: 11,496
Likes: 6
From: Kansas
Welcome to the site! 
This link may be of help to you. https://www.ford-trucks.com/forums/7...xpedition.html
This link may be of help to you. https://www.ford-trucks.com/forums/7...xpedition.html
Hotshot
Joined: Jul 2005
Posts: 11,932
Likes: 181
there are 3-4 different vacuum cyliner operatate doors in the air duct. when you loose vacuum the default is the air goes to the defroster area. YOur loosing vacuum. Check the hoses at the firewall between the motor and glove box area. Check the vacuum modulator behind the passenger side fender well. Make sure the swith on the dash is acutally turnging the **** shaft and not slipping on it.
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bunruh
Explorer, Sport Trac, Mountaineer & Aviator
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Nov 23, 2022 11:46 AM
