Question about Jeep Liberty

2 Answers

Air condition on Jeep liberty is cycling on off, will not accept Freon, ca heats up when attached.

Low pressure side of air heats up when compressor is off. What is this a sign of?

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  • Rigger Apr 15, 2014

    High pressure at 210-260 psi.Low pressure at 28-43 psi.Don't open the service valve on the manifold gage set too quickly.You don't wan't to remove any oil from system.

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  • Jeep Master
  • 1,388 Answers

Overcharged.Get someone with a gage set to hook up to your system and let it down to required level.You should have realize what was wrong when it wouldn't take MORE freon.Overcharge just makes everything else mixed up.It don't know what to do,so it just keep cycling to let you know that something just ain't right.

Posted on Apr 15, 2014

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  • Contributor
  • 15 Answers

Maybe to much freon...what are the low and high pressures?

Posted on Apr 15, 2014

  • sammy42379
    sammy42379 Apr 15, 2014

    Maybe to much freon...what are the low and high pressures?

  • shannon floyd Apr 15, 2014

    agree.keep running over filled and you will burn up the compressor.get level down.

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6 Suggested Answers

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Posted on Jan 02, 2017

  • 958 Answers

SOURCE: jeep liberty 2002 air conditioning

please elaborate, does your inside fan still works? does your compressor clutch kicks in?...would you know if you have refrigerant in your system? if you can trace the hose from the compressor to the evaporator, you can see a plastic cap normally blue with a big letter "L" at the top, then it is the low side fitting, you can remove the cap and get a pin and press the pin at the center( be carefull, refrigerant might be present). if there is none, then you have a leak. u lost all of your refrigerant that is why the ac did not work. if you do have a big burst of gas as you press it, then it is not a refrigerant problem,
a lot more to be tackle as you help me diagnose your problem.

tnx

drcool

pls rate me..

Posted on Jul 21, 2008

  • 3 Answers

SOURCE: Adding freon to air conditioner

If your system takes R-134 then the fittings for the high and low pressure are different sizes. You should only be able to fit the connector on the low pressure side.

Posted on May 09, 2009

  • 634 Answers

SOURCE: 2003 3.7 Jeep Liberty Limited Air conditioner

half can is low, possible cause is that fill port is clogged happens when u put sealer in sometimes, but it sounds like your system is under charged check pressure, if no reading port is clogged change port, low reading add freon,

Posted on Jul 07, 2009

  • 17 Answers

SOURCE: 2004 Honay Odyssey Air Conditioning not working

you have to replace the resistor under the passenger side dash. the wires coming from the blower motor runs to it. if it is back the module wont let the a/c work. common problem. easy fix

Posted on Sep 06, 2009

  • 1 Answer

SOURCE: 2004 jeep liberty heat air conditioning

There is a resistor that you can buy from Autozone or equivalent. It is a Fan Speed Control Resistor, and is located behind the glove box. It is simple to remove, the hardest part is disconnecting the wire harness. The part is like 25 bucks, and is sure to fix your problem.

Posted on Sep 09, 2009

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1 Answer

My 2006 jeep liberty ac blows hot air and the clutch doesn't engage ,it turns ok with your hand.


Check fuses, if ok, then check for freon pressure, if low on freon, low pressure switch, will keep a/c compr. from coming on, so it don't get damage due to low on freon, recharge a/c system, if low and check for leaks.

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Freon is what you are missing, our more specificly a refigerant charge that exceeds 45psi on the low side pressure line. This system has two pressure switches, a high side cut-out switch mounted on the rear of the compressor, and a low side or pressure cycling switch on the suction line.
Jump the low side switch contacts to ensure the electronics are sound for this system. If the compressor cycles, you know the system is low on a refrigerant charge. Turning on the AC is a request, and certain criteria must be met before the system operates as designed. Good luck

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I have a 2002 Jeep Liberty, my airconditioning is blowing hot air. I could hear a clicking sound from my compressor area, so I pop the hood, and the sound is from the gear not turning. I could also see my...


You are low on refrigerant,, whats happening is the low pressure switch hits cut out settings to prevent compresser damage,hence the pressure drop, once the pressure comes back up on the suction side, compresser is engaged again and cuts out, this happens very rapidly,sooo, purge and recharge the system, add dye to it, because there is a small leak somewhere, GOOD LUCK, RDJRP

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1 Answer

Air condition blows hot air but it has freon


You may have created an over charged condition and at this point the a/c compressor will cut off on high head pressures. This can be verified by installing gauges to the systems high and low side service taps and reading the pressures.An overcharged system will start the compressor briefly but soon cuts off once pressure goes to 350 - 400 lbs on the high side. Acceptable pressures for this system should be no greater than 250 high and low suction should drop to 40-50 psi.You might recover the charge and evacuate the system,then try bringing the charge back to proper level.A sight glass in the reciever drier really helps determining proper fill.Once all bubbles have dissipated from the sight glass during charging ,one should stop at that point to avoid overfilling.Too much freon is worse than a low charge especially in hot ambient conditions....

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1 Answer

2003 3.7 Jeep Liberty Limited Air conditioner


half can is low, possible cause is that fill port is clogged happens when u put sealer in sometimes, but it sounds like your system is under charged check pressure, if no reading port is clogged change port, low reading add freon,

Jul 07, 2009 | 2003 Jeep Liberty

1 Answer

The air conditioning in my 2008 Buick LaCrosse does not work.


Need clarification...
Does the compressor run steady, cycle on and off continually or even come on at all? If cycles on-off then attach charge manifold/gauge set and bring freon up to proper level. If does not come on at all, then start engine, turn a/c on, remove two-wire plug from low pressure cut-out switch mounted on accumulator. Jumper the wires at plug and see if compressor comes on. If so, bring freon up to proper level.

If charge level was low then check for system leak after system charge with an electronic leak detector if available.

If compressor runs but doesn't cool vehicle then with engine running and a/c on feel (carefully) the lines. High side line should be hot (be careful) and low side line should be cold. If these are both true then it's possible non-cooling condition is due to air temp diverter door not operating or heater valve not shutting off (if so equipped). If low side not cold it could be a plugged orifice tube. If high side not hot it could be bad rings on compressor. Both conditions can be diagnosed with a/c manifold gauge set by noting the pressures.

For safety... if not familiar with differences between hi and low side components or with charge equipment then please take vehicle to qualified person for service.

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1 Answer

My air conditioning blows hot air. Won't accept


Is the system low on Freon? If not, you most likely have a bad A/C compressor, or a bad low pressure switch.

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1 Answer

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U may be low in Freon gas.
When Freon is low there's low pressure switch that will prevent A/C compressor clutch from engaging to protect it from failure.
So, first check Freon pressure & any leaks form lines & hoses fittings.
Even if the fan is working, that doesn’t indicate proper compressor OP'S.
Look at the compressor front side you'll see the clutch stationary while the AFT pulley moving.

Then put air-condition compressor switch to ON (Engage),
You should see the clutch engage & start rotate,
If NOT, this is very clear indication u r low in Freon.

Regards;
MAR

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1 Answer

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check ac compressor to see if clutch is engaging with system turned on.if not could be low system pressure safety switch which wont allow to run because freon is to low.

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1 Answer

My air conditioning unit is fully serviced but only blows warm air. The low pressure side hose does not get cold and there isn't any condensation dripping from the system. I have the same problem. The...


Is the system full? Jeeps have a long history of bad evaporators. Even if the system was serviced, you could have lost the freon overnight. Compressor cycling can be because of not enough freon also.

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