Question about 2003 Ford Expedition

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Air conditioning, fluctuates between vent and windshield, when set on vent

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Most common cause of your problem is the blower motor actuator. This module diverts air from the defroster, to vent, to floor and is vacuum driven. The vacuum leak is usually under the hood starting at the firewall on the passenger side and working your way backward.

Posted on Jul 29, 2009

  • Greg Margossian
    Greg Margossian Jul 31, 2009

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Water evaporation always refilling radiator also when air condition off a vapor comes through the vents


The coolant is not evaporating ,it is leaking from the heater core. The vapor out of your vents is coolant. You probley also have a residue on the inside of your windshield

Oct 27, 2013 | 1999 Dodge Durango

Tip

Tips for operating Air conditioning system on Toyota Hilux and someother...


To cool off your Toyota after it has been parked in the hot sun, drive with the windows open for a few minutes. This vents the hot air, allowing the air conditioning to cool the interior more quickly.

Make sure the air intake grilles in front of the windshield are not blocked (by leaves or snow, for example).

On humid, do not blow cold air on the windshield. The windshield could fog up because of the difference in air temperature on the inside and outside of the windshield.

Keep the area under the front seats clear to allow air to circulate throughout the vehicle.

On cold days, set the fan speed to high for a minute to help clear the intake ducts of snow or moisture. This can reduce the amount of fogging on the windows.

When driving on dusty roads, close all windows. If dust thrown up b the vehicle is still drawn into the vehicle after closing the windows, it is recommended that the in intake be set to FRESH and the fan speed to any setting except "OFF".

If following another vehicle on a dusty road, or driving in windy and dusty conditions, it is recommended that the air intake be temporarily set to RECIRCULATE, which will close off the outside passage and prevent outside air and dust from entering the vehicle interior.

HEATING

For best results, set controls to;
Fan speed ---- Any setting except "OFF"
Temperature----Towards WARM (red zone)
Air intake ---- FRESH (outside air)
Air flow ---- FLOOR
Air conditioning ---- OFF

For quick heating, select recirculated air for a few minutes. To keep the windows from fogging, select fresh after the vehicle has been warmed.

Press the "A/C" button on for dehumidified heating.

Choose floor/windshield air flow to heat the voltage interior while defrosting or defogging the windshield.

AIR CONDITIONING

For best results, set controls to;

Fan speed --- Any setting except 'OFF"
Temperature --- Towards COLD (blue zone)
Air intake --- (outside air)
Air flow --- PANEL
Air conditioning --- ON

For quick cooling, move the air intake selector to recirculate for a few minutes.

VENTILATION

For best results, set controls to;

Fan speed --- Any setting except 'OFF"
Temperature --- Towards COLD (blue zone)
Air intake --- (outside air)
Air flow --- PANEL
Air conditioning --- ON

DEFOGGING

The inside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone) to heat; COLD (blue zone) to cool
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
Air conditioning --- ON

The outside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone)
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
Air conditioning --- OFF

On humid days, do not blow cold air on the windshield. The windshield could fog up because of the difference in air temperature on the inside and outside of the windshield.

DEFROSTING

The outside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone)
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
Air conditioning --- OFF

To heat the vehicle interior while defrosting the windshield, choose floor/windshield air flow.

on Feb 14, 2011 | Toyota Pickup Cars & Trucks

2 Answers

Air conditioning


Check the fan/fans to see if they are working and the fuses. These are the usual causes of a bad vent

May 09, 2013 | Ford Cars & Trucks

1 Answer

I have an 01 Jeep Grand Cherokee. When you turn on the air conditioning air does not blow out any of the vents except a small amount of air (cold) will blow out the defroster vents by the windshield. If...


behind the center counsel between the floor and the heater housing is a part that is called the blend door actuator. these usually go bad and have to be replaced.

Mar 15, 2010 | 2001 Jeep Grand Cherokee

1 Answer

When I acclerate the air stops coming out of the


Should be a central vaccuum block behind your selector for vent defrost etc. perhaps that is going bad. They're expensive for something made of plastic. cheaper alternative is the junk yard.

Jun 23, 2009 | 1995 Oldsmobile Cutlass Supreme

1 Answer

Water on the front driver side floorboard


It's not the air conditioning because the problem happened after a rainfall. The air conditioning would cause a wet rug while the air is on and it is very warm and humid outside. Then I could see a plugged drain causing the issue. It may be a leak around the windshield area or sunroof if you have one.
Start your car and put your fan on high. close the windows and doors. Spray a soap and water solution around the outside of the car starting around the windshield area. Look for bubbles forming. When you find the bubbles you found your leak.

Apr 10, 2017 | 2004 Toyota Corolla

1 Answer

Turned air condition on, went to turn it off (button out) light is still on and color of light is green when on or off 2009 kia rio.


I may be able to help but, I need some more information. When you turned on your A/C what was the vent selector set at (Floor, Face, Defroster)?

Most newer cars with A/C systems have a built in setting when you set your vent selector to Defrost mode (blowing on the windshield) that automatically turns on the A/C unit. This is normal due to the fact that a fogged up windshield is from water vapor and the A/C does an awesome job of drying the air so it can more effectively and quickly remove that annoying water vapor from your windshield so you can see better while driving.

Try changing the vent selector to full face vent (the vents from the dashboard that you can adjust) and switch on/off the A/C and see if that solves your problem.

Jan 05, 2009 | 2008 Kia Rio

1 Answer

Air conditioning


You have an engine Vacuum leak. It might be as simple as a vacuum hose.

Aug 21, 2008 | 1998 Oldsmobile Regency

1 Answer

Air conditioner staying on...


Many cars use air conditioning as part of the defrost function. Cold air will clear windshield faster than hot air.

Aug 01, 2008 | 2001 Honda Civic

1 Answer

Air condition


Have you checked the diverter doors under the dash??
It sounds like a vaccum hose may have fallen off your vent controller.
I have had similar problems and found that the air WAS moving, but it was all going up through the defrost vents at the windshield.
A quick check of the vac. lines showed that one under the glove box was pulled off.
with the engine running, try setting the air settings to all the options ( vent/floor/defrost..etc..)
See it you can feel or hear the diverters moving under the dash..

Jul 02, 2008 | 1994 Chevrolet Lumina APV

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