Question about 2003 Mitsubishi Lancer

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Air conditioning is cold and then all of sudden the cold air stops but the air continues to flow. What would cause this? tried to put in freon but didn't seem to take any.

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Low charge is probably the problem. Try a fill kit from autozone. Look under the hood for leaks. They will be oily dusty spots on the 1/2 inch steel lines. Usually at the connections.

Posted on Aug 10, 2010

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Posted on Jan 02, 2017

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What makes a/c system blows white smokelike out of vents


What you are seeing is probably fog which is a large amount of water in the evap box. Some times the evaporator freezes up due to a lack of air flow or a restriction in the flow of freon in the system. The floor drain could also be stopped up and not letting the water drain out of the car.
You can check to see if a puddle of water is present when the car is parked and the a/c is on. Also try switching from fresh to recirc and see if it makes any difference on air flow. You may have a restricted cabin air filter too.

Jun 23, 2012 | 2004 Honda Accord

1 Answer

Have a 2000 V 70 and the a/c doesn't get cold. I put in a can of freon and it helped a little bit until the weather got hot again. Bought another can of freon, but it wouldn't go in. A red light...


Without gauges you can refill the unit by running the engine at about 3000 rpm. Turn AC on full speed. Then open the freon can a tad to get rid of any air in the line and connect it to the suction port. Open can full blast, shake it while upright and continue filling until the intake line going to compressor starts getting cold and sweats. Then stop. Air coming out of vents should be around 41 degrees.
Cabin filter if clogged will only impede air flow - not how cold it is. Actually, id the flow is impeded the air coming out will be colder since less is passing over the evaporator. But that could under certain conditions lead to the evaporator freezing up (then use outside air option instead of recirculated) to deal with situation. There- you are now an EXPERT!

Aug 25, 2017 | 2000 Volvo V70

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Air conditioning not too cold ??


Hello,
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Let me explain in layman's terms how the air conditioning (AC) system works and what could be happening to your car.

Like your body, the air conditioning compressor is the heart of the AC system, and Freon is the blood. The compressor pumps Freon throughout the AC system, either the older type R12 which costs as much as gold it seems these days, or the new environmentally-friendly R134A Freon. This Freon is a gas and liquid combination that is compressed and circulated throughout the air conditioning system. The compressed Freon is pushed through the system under pressure and is passed through different sized metal and rubber hoses and a special valve called an expansion valve that cause the gas to expand and contract.

This expansion and contraction makes the Freon gas very cold. This cold gas makes its way via metal lines into the dash area of your vehicle to the evaporator core. This evaporator core is like a small radiator, except it has cold Freon circulating inside and not hot antifreeze. A small fan (the AC blower fan which you control from the control panel on the dash) sits in front of the evaporator core and blows air across this cold evaporator and then through the vents inside your vehicle.

The other objective of the air conditioning system is to remove the heat from inside the cab of the vehicle. This heat is removed by the Freon with the help of the AC condenser located at the front of the car (usually in front of the radiator). The Freon coming back from the evaporator carries the heat from the cab to the condenser via rubber and metal hoses. Just like your radiator, the condenser is lightweight aluminum with many internal winding coils.
The Freon travels through these coils, and in between these coils are small slits or fins that the Freon is forced through. The condenser will have an electric cooling fan mounted in front or behind it to push or pull air through these fins to remove the heat from the Freon. Some vehicles still use the old fashioned fan blade driven by the engine to pull air across the radiator and the condenser.
Now I know that is just a tidbit of information on how the air conditioning system works, and it is very general, but I wanted you to know what to look for to give you insight as to what might be happening with your vehicle.
A few causes of low cooling efficiency or no cooling at all at idle are:

Lack of air flow across the condenser. Make sure the electric cooling fan motor near the condenser is coming on, or in models that are equipped with a fan blade make sure this fan is turning and is turning very fast.

Low Freon levels. Freon level and pressure should be checked by your certified air conditioning mechanic.

Overheating. If the engine is running hot or overheating, it can have a noticeable negative affect on the air conditioning system. Some cars have two electric cooling fans, one for the air conditioning condenser and the other for the radiator. Make sure they are both working properly. Usually at idle on a hot day with the AC on both fans will be on.

When the vehicle is traveling at freeway speeds, the compressor is pumping the Freon throughout the system much faster and harder than at idle. There is a dramatic increase in air flow across the condenser due to 55 mph winds, and the engine is usually operating at a cooler, more efficient temperature as well, thus allowing the air conditioning system to operate efficiently.
Note: An air conditioning system that is somewhat low on Freon can still feel comfortable at freeway speeds due to the added air flow across the condenser which can overcome the ill effects of slightly low Freon. Periodic air conditioning performance checks by your mechanic are the best way to keep the system in great shape.

Hope this helps.

Goodluck

Oct 08, 2010 | 1998 Cadillac DeVille

1 Answer

The air conditioning compressor cycles continuously, sometimes cutting off the engine, and there is no longer cold air coming out.


Try to add freon,it is most likely low,and needs the recharge,also,if it leaked freon,it leaked oil,so put some oil in it also,If this was helpful,please rate,thank you.

Jun 28, 2010 | 1989 Chevrolet C1500

1 Answer

My air condition want' blow out cold air i try


If your car is more than a few years old, it probably has a leak or a worn compressor. You can add too much freon for the system. It needs to be vacuumed down to a negative pressure before adding freon, and then checked for compressor function and leaks. You may need to take it in to a reputable shop.

Apr 08, 2010 | 2002 Chevrolet Monte Carlo

1 Answer

My air conditioning stopped blowing cold how do you put in freon


turn on the a/c and look under the hood. if the compressor clutch is not turning then it would be low on freon gas. also check the fuse and a/c relay to see if they are blown out.

Apr 01, 2010 | 1999 Dodge Durango

1 Answer

Air conditioning system is not colling the car ? what do Ineed to do ?


i need to know how is not cooling the car?
is the fan blowing air or is the blowing air not cold?
it probably isnt cold.lets try that.
put a set of 134a ac gauges on the system and verify pressures.if it has low freon you may hear the compressor turning on and off.if so for sure its low and you will just need to add freon.
go get a 134a fron fill kit not the conversion kit.
and begin to fill untill the comp stays on and air is blowing cold.then stop filling and enjoy.
do not over fill as this will cause it to not cool again.

Jun 12, 2009 | 2002 Toyota Camry

1 Answer

Air conditioning does not blow cold air all the time


your high pressure switch is faulty. the part is about 50$

May 12, 2009 | 1998 Nissan Altima

1 Answer

2005 LS Jag engine - air conditioning works on long trips sometimes, then all of a sudden we get no cold air and the air flow reduces to about nothing. I stop the car (gas station for 5 minutes) and go...


Sounds like your evaporator is freezing up.There are several things that could cause this like low freon charge,restricted orifice tube,ambient air temp sensor,evaporator discharge air temp sensor,AC pressure transducer sensor.
You might want to get someone experienced on that vehicle to take a look at it.

Feb 25, 2009 | 2001 Lincoln LS

1 Answer

2001 Honda Odyssey Ex Air Conditioning Not Cooling


Hi, my best advise is to have your air check for freon leaks ,low freon causes the compresor cluth to stop working ,this can cause the air to blow hot .......

Jul 10, 2008 | 2001 Honda Odyssey

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