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You have a vacuum leak in the HVAC (Heating, Ventilation, Air Conditioning) system. Inspect the vacuum hoses that operate the HVAC system looking for cracked, pinched or damaged hoses. Also inspect the vacuum reservoir for leaks or damage.
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How do you fix your ac to blow in the correct vents and not just the defroster?
My ac blows only in the defroster and not any of the other vents i have 98 ford windstar 3.8 v6
On a1996 corvette what causes the AC air to blow out of the defroster and floor vents for about 30 minutes before blowing out of the dash vents?
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1984 buick air conditioner only blows out the defrost vents?
The 1984 Buick uses vacuum lines to change air flow from defroster to ac vents. Check the entire vacuum system for leaks.
Why is air coming through the AC vents instead of the defroster vents on a 1995 Buick Skylark?
There may be something blocking the deflectors from sending air up there.
What causes air to blow out the floor and defroster vents but not out the panel ac vents on a 1997 firebird?
How easy is it to replace head gasket on 1994 firebird lt1 motor
Why do you get hot air at floor and defroster vents but only cold air at the dash vents vents in a 1995 chevyvan 20?
the middle vents only supply air from the ac unit using a separate in dash fan. the floor and defrost vents come only from the heater
Dodge ram 2003 ac wont blow thu vents whats wrong with it?
If it blows only out the defroster vents : then check for Vaccume leak Rick ASE L-1 Master TransMichigan.com
What is causing the air to come through the defroster vents and not the AC vents in a 1995 Ford Mustang GT when the AC or vent knob is turned on?
I am sorry, I am not technical on this stuff, but we had the same problem on our 95 Mustang GT. We had to take it into the dealer and the problem was that one of the hoses had come loose, so it was not blowing enough air pressure to force the vents open.
What would cause a 1999 Jeep Grand Cherokee to have no ac to front vents but blow ac from defroster vents instead?
Check for vacuum leak either under the hood or under the dash Check the operation of the vacuum actuators Check the selector switch Defrost is the default setting on this system
How do you change the air conditioning vents to the correct position?
AC VENTS are in the correct position if they are open and free flowing. Some systems have a heat and an AC position for the vents. The AC position is so the cool air discharges from the vents higher on the walls or from the dash rather than floor or windshield in a car.
Why is the AC air cold and the blower is working but no air is coming out of the vents on a Chevy Astro van 6 Cy when ac is on and charged It blows hot air?
The air should be comming out of the defroster vents. If so, most likely, it is the vacuum line that controls the vents. It is on top of the engine below the air cleaner, and runs to the front right of the engine. Buy the replacment so you know what your are looking for.
What do you look for in having the blower blow to the floor and through the vents. Currently no matter how you adjust the AC or heater control it blows through the defroster by the windshield?
your switch cable might be broke you will have to remove your dash
