Question about 2005 Kia Optima

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A/C will not cool

I have added freon to it . it will not cool. my brother noticed a leak at the radiator. what could be the problem ?

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  • lisasneed32 Jun 21, 2009

    the a/c runs . but no cool air. freon does not seem to be the problem . i am thinking it is a leak or maybe a new compressor.

  • yadayada
    yadayada May 11, 2010

    one more time, what is the low side pressure reading

  • yadayada
    yadayada May 11, 2010

    radiator coolant leak? does the compressor run? what is the low side pressure?

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  • 288 Answers

When you turn the ac system you should see the front of ac compressor turning you shuold also see and hear the ac condensor fan turn on .that tells me the system is able to blow cold if it has enough charge if see coolant at the raditator it may not work if you are seeing 134 a leak its either a line or connection or condesor leaking repiar leak and recheck.

Posted on Jun 21, 2009

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My 2007 pathfinder the ac is cool not cold,I noticed that the ac fan not turning on


it possibly needs some freon added to it . they all leak after a period of time .

Jun 22, 2016 | AC Cars & Trucks

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My ac condenser does not work


Do you mean the compressor?

Assuming there are no leaks, you could just need a little freon. But, If the fan (on the radiator) is not kicking on then your compressor may not come on either as it needs the fan to run to help keep the compressor cool. Typically it stems from being low on freon though and Autozone sells freon you can self administer but I would advise asking someone familiar with adding freon to help you so that you don't over fill or try to fill it from the wrong port.

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Ac condenser stopped working what are possible solutions


I am going to assume you meant AC Compressor as the condenser is basically like a radiator in that it cools the freon.

I would say that your freon is probably too low to kick the compressor on. This could be simple as adding some freon (With Leak stop(just to be sure)) would get it working again. The question is, why did it get low? Could be just age and it needs a little freon but usually means that there is a leak somewhere (Hopefully it is not the condenser leaking). Some leaks are small enough that you just need to add freon every month or so but they eventually get bigger. Look for oil around the AC connections and hoses. Could be an O-ring that has gone bad. Hopefully it is simply low on freon.

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Lets review what you said - - you were probably adding coolant since freon goes into the air cond unit.
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Dec 10, 2012 | Cars & Trucks

1 Answer

My air conditioner works but does not cool . i have added freon the last two years and fixed the problem ,did the same thing this year but did not help .


When self adding freon after it leaks out you get air trapped in the system. After adding freon a couple of times the air expands not leaving room for the needed freon. To continue adding freon with air tapped will knock the compressor out pretty quickly, there's not enough room for both & the air is keeping the freon from being able to cool properly give the false indication of being low on freon. The freon you are adding has the dye added to assist in finding the leak since freon does not evaporate nor dissipate it its being leaked out. A black light will assist locating the leak. The best thing is to have the unit checked & serviced by a mechanic...he'll charge about $ 150.00 to check for leaks, remove the old freon...his machine will tell him how much air its trapped in the system by how little freon is removed. For the service fee he will replace valves & gaskets, where needed, correcting most leaks. After sucking the system down & recharging the problem should be corrected.

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Added freon to ac and car will not cool


Needs to be checked for a freon leak, best way to do this is to recharge and add dye, with a uv light you will be able to fine the leak, most auto parts sell the dye, and the flash light you will need to fine the leak, good luck.

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I have a 1999 dodge ram with 171k miles on it. just recently i noticed the traqnsmission slipping i checked the fluid and it was low. i added the fluid it helped for a little while but then the same thing...


Yes, it could be leaking into the radiator from transmission cooler in the radiator. I would flush as much of that out as you can and replace the radiator, the anti-freeze is very damaging to your transmission.

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There has to be a leak in the system. Look at the sight glass coming up from the condenser- is the refrigerant low (many bubble). If there is a leak there is a sniffer they use in the shop the detect where it is.

Apr 13, 2010 | 1996 Lexus ES 300

2 Answers

Radiator replacement


  1. Remove air cleaner and duct assembly.
  2. Drain the coolant.
    1. Remove the engine mount struts.
    2. Remove the cooling fans with the cooling fan shroud.
    3. Remove the radiator upper hose from the radiator.
    4. Remove the radiator lower hose from the radiator.
    5. Disconnect the transaxle oil cooler lines from the radiator.
    6. Remove the radiator brackets and bolts.
    7. Remove the radiator. Installation Procedure
    1. Install the radiator. Notice: Refer to Fastener Notice in Service Precautions.
      1. Install the radiator brackets and bolts.
        • Tighten the bolts to 24 Nm (18 ft. lbs.) .
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      2. Install the radiator upper hose to the radiator.
      3. Install the radiator lower hose to the radiator.
      4. Install the cooling fans with the cooling fan shroud.
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1 Answer

Recently added a leak stop r-134a freon to my 1996 deville and after about 2 days the compressor wont turn on and it wont go to "auto" cool and stays on "econ" cool. after adding freon to car i noticed it...


If it's misting, this is a definite indication of an overfill. You should get a hose with pressure guage on it to avoid this. In the meantime, if a dangerous condition exists within your compressor. The optimal amount of pressure you're looking for is in the 40-45 psi range. Definitely needs attention or you will do damage to the system. Best of luck.
Greg

Jun 25, 2009 | 1996 Cadillac DeVille

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