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Vents are uaually operated by vacuum. Chances are, you have a vacuum leak at the directional valve or at the back of the air controller itself. All of these are in or under the dash. Good luck.

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โˆ™ 2004-05-12 17:33:27
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Q: Why would the air conditioner only blow cold air on the floor but not through the vents?
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Related Questions

Why would the ac and heater blow air through the defroster or the dashboard vents but not through the floor vents.?

It should blow through the floor vents. Modern vehicles generally use movable baffles in there HVAC systems, to direct air flow where the controls indicate. If the controls allow airflow to the floor, but nothing flows out, there is a malfunction between the control switch and the actuator that directs the flow.

What would cause heat not to come out of vents when set to floor and vents?

There are heater doors on the heat blower box that direct the path of the heat. Apparently the heater door to the floor vents is stuck closed.

Why would the vents not work but the def and floor air will?

vaccum losss

Why would air only blow out the floor vents and the two outside dash vents not out the center dash vents?

The flap that directs sir to the selected vents is jammed or broken...or the switch that controls it is.

Why Heater vents are usually placed near the floor?

Warm(er) air rises - if vents were high up there would be little circulation without fans.

In order to heat a room should heating vents be placed near the floor or near the ceiling of the room?

Heating vents should be located near the floor since hot air rises. If the heating vents are located near the ceiling the heat would stay there and not warm the room.

What would cause my air only to blow out of the floor vents and not the panel vents in a 1995 Camaro?

The most likely cause would be a vacuum leak at the rear of the engine or a defective selector switch.

Why would air only blow out the floor vents and the two outside dash vents not out the center dash vents or the defroster no matter what setting the Heat and air controls are on in a 2003 Ford Taurus?

some thing is probley cloging the vents take it appart and ckeck.

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 would a 1999 Dodge 2500 Diesel have little to no cab heat when the fan is moving lots of air through defroster vents and floor vents?

Low coolant level? Thermostat opening too soon? Plugged or restricted heater core? Water pump not circulating coolant? System airbound?

Why should heating vents be placed on the floor?

Heating vents should be placed on or near the floor because heat rises. In rising, it will warm the air of the room. If the heating vent were near the ceiling, the room would stay chilly, even though heat was being poured into it.

Why would coolant leak through the vents in your jeep wrangler?

Leaking heater core

What would cause a foul odor through the vents when the air conditioner has been turned to vent on a 1998 Ford Contour?

It is common for condensation to accumulate in the evaporator core and cause an odor. There are air freshoners that can be sprayed through the fresh air intake and help sometimes. Contact the ford dealer.

What would cause water to come in your floor vents?

Could be that your heater core is leaking May also have a plugged evaporator hole.

What causes steam to come through your vents inside the car?

I would think if steam is coming from your vents that you have a leaking or defective heater core and or one of its components and in most cases the water leaking from the core can be found in the floor board on the passsenger side and this needs to be fixed right away due to engine coolant loss and the possiblity of engine damage from overheating. Also if the air conditioner developes a leak it could be mistaken for steam however if the freon is lost the ac will quit. , EzForJesus heater core..

Why don't you fall through the floor?

There is more than one force acting on you, (something besides gravity). Why would you? The floor is in the way. Only if the floor is weak, such as made of a sheet of paper, the floor would let you through.

Why would the vents in your 1999 Suburban blow air through the defroster but not through the dash?

thats because your blower went out

What would cause the passenger side floor to get wet when you run the air conditioner in a 2001 Dodge Dakota sport pickup?

The evaporator drain tube through the firewall is pluggged.The evaporator drain tube through the firewall is pluggged.

What causes condensation on your air conditioner ducts?

sounds like you do not have your superheat or sub-cooling tds correct. if so it would remove the moisture at the evaporator and not your interior duct vents

Why would the air conditioning only blow air from the defrost and floor vents and not the dash vents on a 1996 jimmy?

This is a very common problem and you need to check for a vacuum leak, broken vacuum line or a loose vacuum line......

Why is there no air coming out of vents can hear air blowing under dash board?

The year, make and model would help but many vehicles use vacuum to operate the direction of air flow through the floor vents, dash vents and defrost vents. If the vacuum supply is cut off for whatever reason the system defaults to defrost only. So if you only have the defrost mode working chances are the vacuum supply is cut off. Check the HVAC vacuum supply line under the hood for damage. If that system seems to be working but you have insufficient air flow through all of the vents, check/replace the cabin filter if applicable.

What would cause a humming sound when car heater is turned on high?

The motor which blows air through the vents.

What are the vents under front seats in a 1996 Chevrolet astro?

Just heater outlets for the rear area. If you were to remove the console assembly which hides the engine cover, you would see a duct running from the top to beneath the floor. It feeds the vents you mentioned.

What would cause puddles of water on the floor of a 1996 Chevy Corsica?

Heater core is leaking. Air Conditioner drain hose is plugged.

What causes the air conditioner to blow on the windshield and through the floor vents on a 2000 Chevy Astro Van?

This sounds like a vacuum line problem. First thing I would check would be the vacuum lines and check valves contained in line with them, as well as the vacuum canister. Could also be a problem under the dash with the vacuum actuators in the HVAC unit. Another slight possibility also could be that the controller isn't functioning properly. Hope this helps. Good Luck!