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Why does your ford contour not blow air out the side window vents on defrost?
Wiki User
∙ 11y ago
Perhaps a stuck door in the HVAC system or a blockage in the ducts.
Wiki User
∙ 11y ago
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Why doesn't heat blow out floor only?
the heat blows out the defrost when it should blow out floor vents only
Why AC won't blow out of dash vents just defrost vents in a 1996 buick regal?
on your car it is a defalt mode for air to blow out defrost when there is no vacumn from the engine so you should look for a broken vacum line or see if it has come unplugged on the engine.
Why does a 96 Contour blow the blower fuse when the selector is put in the defrost position any speed but not when on front vents?
Try unplugging your AC compressor and see if it still blows the fuse. When you turn on your defrosters you also turn on your AC.
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How do you fix the vacuum line for a 99 GMC safari?
The AC does not blow on the main front vents. Only rear and defrost.
Why does a 2003 Crown Vic with auto temp control blow heat and ac from the defrost and floor vents but no air through the dash vents?
Because the air selector died.
Air vents on your 2005 f-250 6.0 diesel blow only out defrost ports and not from vent or floor What is going on?
you have a vacuum leak. defrost is the default when a vacuum leak is present.
Why would your air conditioner blow out of the defrost vents ON 2000 F-350?
You probably have a jammed or otherwise defective vent door.
Why does AC and heater blow air through defrost vents and will not blow air?
depending on what year and make it is, the most likely issue is that you have a valve that moves to divert air to the upper vents, floor vents, and defrost vents and it is either stuck in the defrost position, is broken, or a cable/connector has come loose. The valve is usually in the center of your dashboard up against the firewall. The air flow direction in many vehicles is operated by vacuum controlled servos. If the vacuum supply is cut off, the system reverts to it's default position which is the defrost mode. My guess would be that the HVAC vacuum supply line under the hood is disconnected, pinched or collapsed.
Why does 2000 Buick Lesabre Custom Air Conditioner blow only through defrost vents?
The vacuum supply line from the engine is disconnected or broken. When the vacuum supply is cut off the system defaults to the defrost mode.
Why does the air only blow out through the defrost vents on my 1989 camaro rs?
either you have a vacume leak under hood or the diaphragm is blown on vent selector
Why does your gmc sonoma blow only a little air out and the defrost only blows out the front vents?
why dont bottom vent doors not open on 2001 gmcsonoma
