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My car air conditioning is stuck on floor and defrost how do i change it?
Wiki User
∙ 14y ago
Check for a vacuum leak under the hood, as most HVAC controls are vacuum operated. Listen for a hissing noise. If you have some mechanical expertise, you can spray carburetor cleaner around under the hood and listen for a change in idle speed, this will give you an approximate location to search for a vacuum leak. Once this is fixed, your HVAC should work normally.
Wiki User
∙ 14y ago
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1995 G20 Van - Why will Air Conditioning only blow out of the defrost and lower floor vents and not the dash vents?
Air flow is controlled by plastic doors which are controlled by vacume motors. Could be they're stuck, or a vacume leak.
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Sounds like a stuck blend door.
I have a 2002 Ford Explorer that is get low air flow from the defrost vent when the defrost unit is selected. Most of the air flow is going to the floor vents. Is the blend valve bad?
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The air door under the Blazers dash could be stuck, or there could be a vacuum leak on the engine. The door opens and closes from vacuum, directing the air from heat to defrost.
How do you repair ac controls on Sebring convertible?
If it's stuck in defrost your battery died and messed up the computer. Disconnect battery for 5 or more min. My 96 cooled and heated ok but was stuck in defrost
1987 Taurus stuck on defrost for months then all functions worked for about a week Now it back to defrost only Is the vacuum hose connection behind the dash board or in the engine compartment?
well ive heard (i had a similar problem with my car) that vacuum lines are to blame, the default setting for you air conditioning is defrost since if it broke and you were in the snow up north at least the air would defrost your windshields to fix mine i simply had to plug in a vacuum line that had come unplugged, you might have some wierd sort of leak in yours
Why doesn't heat nor cold air blow out of front or floor vents but does out of windshield defrost vents?
It sounds like your vacuum controls are stuck on the defroster I had that happen and I sprayed a lubricant into the vacuum lines and it cleared up
1998 Durango Vent controls stuck in defrost mode will not blow through dash any suggestions Ac works but only blows to front windshield and floor.?
Check for vacuum leak either under dash or hood Check for bad vacuum motor under dash Defrost is the default setting for this vehicle
Do you move when you get stuck to the floor?
No
Why is the vent stuck in defrost on a 89 camaro?
most likely the cable is stuck, try oiling it, if all else fails buy a new one
Your 1994 dodge ram 1500 is stuck in defrost mode and will not change to any other setting?
The rotary switch uses the engine vacuum system to operate the diverter "flap". If it is stuck in defrost mode then you have a vacuum problem... It can either be from the source (not generating vacuum), or in the transmission of the vacuum (the small plastic tubes). These tubes are prone to dry-rot/cracking causing them to loose their capacity to transmit the negative pressure.
1991 Chevy 350 pick up 1500 heater display works and will get hot butt it wont go to the defrost and is weak on the floor and vents?
the flap on the vent and defroster is stuck somewhere in between so it is not letting proper airflow to where you designate it possibly something sticky has fell down through the defrost vent and is constricting max. airflow
