Question about 1993 Saturn SL

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Electrical problem in air conditioning it makes cold or hot air, but it doesn't blow

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Sounds like that you may have either a blend door problem or a broken vacume hose.

Posted on Dec 21, 2008

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Air conditioning system, when you turn on the air conditioner the drivers side blows cold air and the passengers side blows hot air? What causes this problem?


The most common cause of this is that you have a stuck air temperature control blend door, this can be a motor actuator issue or a jammed door or both (common). To replace both parts you will need to completely remove the dash from the car to access the blend door.

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Passenger side blows cold air--what part could it be


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On my wifes 03' Yukon the rear air conditioning blows hot air no .... Pull the panel off and look at the hot/cold actuator shown in the picture.

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make sure your heater core is in good condition this could be done with a compression test, if that is fine i would make sure the climate control switch is working proper and not shorting between cold and hot

Oct 15, 2012 | 1998 Ford Taurus

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1999 VW passat air conditioning gets cool but not cold. It gets colder after driving then put in park than it does while driving. The condensor and fan both come on but it doesn't blow cold air. H


take to a shop and have it done if you dont have proper equipment to do it is easy to over or under charge if was shop not friend then take back . when too much is put in at higher speed it will not cool and the specs are in metric and only holds 1.15 lbs of 134-a no more

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Could be low on freon, a restriction in the system, or electrical problem.

Jul 10, 2012 | Ford Cars & Trucks

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Air conditioning blows hot and cold air


You will need to know if the compressor is working when it blows hot air to proceed. It could be an electrical problem, a blend door problem, or the a/c clutch on the compressor.

Jul 02, 2012 | 1999 Honda Civic

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2004 VW Passat AC is blowing hot air


Have the dealer check to see if the AC compressor cycling switch is stuck.

Jun 14, 2012 | Cars & Trucks

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Problem with heating and air conditioning. The driver's side is blowing hot air and the passenger side is blowing cold air


Air Conditioner blows warm air
  1. Air conditioner system is discharged. Have the system evacuated, charged and leak tested by an MVAC certified technician, utilizing approved recovery/recycling equipment. Repair as necessary.
  2. Air conditioner compressor clutch not engaging. Check compressor clutch wiring, electrical connections and compressor clutch, and repair or replace as necessary.

Jun 01, 2011 | 2004 Buick Century

1 Answer

The air conditioning system will only blow cold air. Regardless of the mode, I can only get cold air. Can you give me an idea on how to fix the problem? Thanks Don 615-653-3834 drcamp117@comcast.net


The air conditioning is supposed to blow only cold air. Are you trying to get the heater to blow hot air? Make sure the temperature selector is in the hot position.

Dec 19, 2010 | 2002 Buick LeSabre

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Air conditioning is blowing out hot and cold air


It sounds like the dual climate control valve. It is supposed to close the valves when the a/c is turned on, but they get stuck sometimes. I have already replaced 2.

What happens is the valves get stuck and the engine heat will blow over the cool air making it feel warm, even though the a/c is working fine.

If it started out on one side of the car cooling better than the other than you can almost bet this is the problem.

They will be called a heater control valve by most auto parts stores. I think the part is Motorcraft YG378.

Another way to make sure this is the problem is to find the dccv and clamp the two top black hoses with pliers or something and see if the car gets cooler. It will still not get cold but this will let you know if the dccv is the problem.

Jun 03, 2010 | 2000 Lincoln LS

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