Question about 2002 Jeep Liberty

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Leak in a/c system,installed 2 cans freon w/oil & stop leak.Can got cold once putting in temp. insice hot always.

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  • Jeep Master
  • 2,019 Answers

I am afraid I agree with tedpineywood.
The spray orifice in the evaporator is the tiniest hole you can imagine, so you never want to use any sort of leak stop in an AC system.
AC systems always leak because there is always a shaft driving the pump from the engine, with a belt, and there is no way any leak stop can prevent that seal from leaking.
It is perfectly normal for freon to only last a year or 2 at most.

Posted on Jun 08, 2010

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  • Master
  • 7,353 Answers

Stop leak, thats great, now its going to cost even more to repair your a/c system. Take to a shop that does a/c and prepare to pay. its going to need a compressor, condenser, evaporator, drier, exp valve and possibly hoses.

Posted on Jun 05, 2010

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1 Answer

97 Plymouth Breeze won't blow cold air due to freon leak.


Your AC system is a closed system, so the fact you have to put more Freon in, means there is definitely a leak. I would check it out with a mechanic.

Apr 26, 2015 | Plymouth Cars & Trucks

2 Answers

Cold/hot knob doesnt seem to work stays on hot


have the ac system tested for leaks as the can you put in will either be too much or the can will have been pumped out of the leak. Best leave this operation to the professionals as the amount is critical to correct operation and they check for leaks in the system before they start .

Apr 25, 2014 | 1997 Ford Expedition

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2000 NISSAN 4X4 P/U A/C SYSTEM WILL BLOW COLD WHEN OUTSIDE AIR TEMP IS COOL, WHEN HOT OUTSIDE AIR BLOWS HOT.


your auxillary fan is not working. this fan is responsible for cooling the freon that is being circulated in your cooling system... check if there are any loose wires in front of the engine bay.

the auxillary fan is located right beside your radiator fan.

May 17, 2012 | 2000 Nissan Frontier

1 Answer

A/C just went out. Worked fine earlier today,


Wow thats hot!! Ok want a quick fix? You sound like ya have a leak so lets see whats going on....buy 3 cans of freon 123a...they come in 1 pound cans...get a low pressure charge hose.
here"s what you will do,
buy 1 can of leak detector freon 134a(1 Lb.)
1 can of synthetic freon 134a with oil(1Lb.)
1 can of 134a freon with sealer
Find the low fill port the fitting will only fit on low side....there are two one is the high one is the low they both have screw off caps use the bigger one...thread the first can with leak detect. in it and fill it through the port, turn a/c on high blow full a/c, jump out the compressor low pressure cut out switch...if you buy your stuff from Auto Zone the guy will show you which switch that is on a diagram he can supply for free just ask, next fill the leak stop can, then the one with a/c oil.
Should be cold, drive a while or until it leaks out and spot the dye coloration coming out of the system showing you where the leak is, bleed off the system repair the leak and refill like I just told you use up to 2 3/4 cans max.
Happy Motoring!!

Jun 22, 2010 | 2003 Suzuki Aerio

1 Answer

How do I fix a Air condition blow out hot air?


Go to your local auto parts purchase a a/c charge kit for about $69.00, find the low pressure(suction) fill port, there are two ports in every a/c system one is a low pressure side used primarily to fill a system with freon 123a or the like and it is the larger valve mounted on the line, then there is the dangerous high side valve, this is a smaller diameter valve mounted to a smaller diamet a/c line, this is under extreme pressure so donot attempt to fill this high side with freon as it can backfire on you and cause injury.
The low side fill kit will not fit on the high side port so thank godness for that.
start the vehicle put the a/c on full cold high blow fan speed, start filling the low side with a can of 123a freon+oil additive, which equals one pound of freon and check the inside a/c vents, getting cold? If its perfect then you are done, the system may have a very small slow leak and if it only takes a one pound can to fill it once or twice a year you are ok, if it takes more you may want to add a second pound can of freon 134a containing a dye additive that will work its way into the system and show you where the leaks are by exposing a color once it hits the air coming out of the systems defective seals etc.,also they sell a sealer + freon one pound can that can be used to try to fix the leak without having to get too expensive on the repairs.
A car's air conditioning system only hold like 2 3/4 pounds of freon, so in the event you happen to over fill the system a high pressure blow valve usually mounted on the a/c compressor will purge off the excess, but let me warn you they blow off without any warning and can startle you. Always think safety first, wear protective equipment. Work Smart, Work Safe.
Happy Motoring!!!

May 20, 2010 | 2002 Ford Escort

2 Answers

When i turn on ac it blows hot air


Normally due to low freon. Also, notice if the a/c compressor clutch engages, as it will not if the freon is low.

Jun 05, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

How can i recharge the air conditioner? Where is the hose located?


Ok if you want to do a home repair in hopes of saving yourself a lot of money and with hopes your system is not in major trouble, here goes:
First step buy 3 types of 1 lb. cans of refrigerant R134a at a parts store, 1 can of leak detector freon combination, and if possible 1 can freon/air conditioning oil combination freon along with 1 can of straight r134a freon.
The store will sell you a charge hose with a cheap type of charge gauge attachment and fittings to attach to your system for the re-charge.
Providing your system is low on freon,First, with the vehicle running and the a/c on full cold, high fan, install the 1 lb. can of freon/oil combo first only charging through the low pressure side of the system never through the thin line high pressure side as the pressure from the high side can enter the cgharging freon can and explode it like a bomb,(this low side line is the larger hose and the low side charging hose fitting the parts store sells you will only screw onto the low side charge valve which is normally marked "low" on the top of the plastic dust cap that is factory installed(hand screwed) on the low side valve fitting.
Secondly after the oil/combo can is emptied into the low side and you of course are wearing mechanics hand protection gloves and eye protection googles, then and only then will you install the leak dector 1 lb. freon can combo.
Third you will install the last 1 lb can of r134a freon, however your vehicle will not allow the whole last pound of freon into its system by means of a pressure relief blow valve that will automatically blow off any excess pressure once the system over fills, the system typically holds approximately 2.75 lbs. of freon.
If you have successfully installed the above freon into the system it should be up and running providing the system is in fairly good working order, by that I mean it may have a very slow leak that allowed the freon tio originally escape in the first place causing you to refill it, and if it does have a leak the leak detector die that you installed into the system should leak out from wherever it may be escaping from, indicating the place of needed repair by means of a red or blue, or whatever other designated coloration the die gives out from the leaking area.
Please note: Not all home charging techniques typically work as there are many mechanical failure factors in an a/c system that may require a certified a/c technician to determine exactly why your system is not working should the home remedy fail.
I hope this helps you and remember to always work safe with eye and hand protection especially around freon gases which become extremely cold and can cause frost bite when contacting with the bare skin.

May 08, 2010 | 2001 Cadillac DeVille

3 Answers

Only cold air on passenger side


I would assume with multiple people having the same problems, there should be a service bulletin on this issue. may want to call dealer with vin # to verify. sounds like a heater control issue under the dash. something i would leave to the experts for repair

Jul 06, 2008 | 2003 Buick Rendezvous

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