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Jeep Liberty Heating Ventilation and A/C

2

Comments

  • After reviewing some of the post on this site regarding the liberty I feel pretty lucky. I have now had my liberty for 8 years took it with 18 miles and now going on 96,000 miles. I have not had major issues with the car.

    The major problem i have right now is that I am getting a large amount of water puddling on the front passenger seat. It is not from Rain or outside intrusion. I believe it is my A/C draining inside the car. Any advise. My front carpet is soaked.

    I agree with many of the symptoms describes with this model. For my these problems started after the warranty period on the car. My liberty has this false contact that i could be cruising down the road specially when i break and the cabin lights flickers. Also i have experience both my rear window have fallen and do not operate anymore. I just fixed a U-bolt on the guide track an permenatly fixed them in the closed position.
  • I had the same problem with my liberty.The problem is the a/c drain as you said,the short 1/2" drain on the passenger side firewall is too short and the engine fan blows the water back and it drains down the inside of the firewall onto the passenger floor.Just get a 4" to 6" piece of heater hose and it should fit tight on the the drain and problem solved.
  • I have just discovered a puddle of water on the driver side floor board of our '06 Jeep liberty. We have had this car for two years with no problems up to this point. Car has a sunroof, but seats are bone dry. Any thoughts? Any feedback will be appreciated.
  • I love my Jeep Liberty but it has now about 93,000 miles and starting to give all kinds of problems. The A/C works fine for a while then it stops and starts blowing hot air. It would go away if you turn it off for a while and then back on.
    Also, the engine light is on and the mechanic (a good one) could not figure out why.
  • 2005 Jeep Liberty... I have water dripping out but not running A/C. Any idea what this is? I am novice of auto repair but believe the is the AC over flow/runoff. Again, not running AC though... any ideas will help before I head for repair shop. Thanks!
  • lj1sblj1sb Posts: 2
    Hi. Here is a quick rundown before I get into my issue. This is a 2003 Jeep Liberty, A/C compressor went (the clutch froze up) broke the belt, etc. had it replaced by a local service place. A/C, however, is not working. The compressor clutch does not seem to be engaging. If I throw 12v directly to the compressor, it will engage the clutch. If I throw 12v to the relay at the fuse/relay box under the hood, it will engage the clutch. I tried pulling the low-pressure sensor plug at the can by the passenger firewall, jumping wires together, nothing. Also just replaced the high-pressure sensor (on the a/c line by the compressor), still nothing. Fuses are good, relay in underhood fuse box is good. What i did notice it the blower resistor (behind the glovebox) is probably bad (position 1 & 2, blower does not come on, position 3&4 blower does come on). If the blower motor resistor is bad, will that cause the a/c compressor clutch to not not engage properly? Shouldnt the a/c still work in Positioin 3&4, since the blower is kicking on?

    Also like to add, I had a guy I know hook it up to DRB-3 at a Jeep dealer and there are no codes to troubleshoot with.

    Any help is appreciated. Thanks
  • caribou1caribou1 Posts: 1,351
    Hi,
    When the engine is warm, running and belt is in place:
    -If you set the blower to position '3', does the A/C come on?

    With a 'warm' engine stopped and serpentine belt removed:
    -Can you turn the compressor by hand if you activate the clutch with jumpers?

    To 'break the belt' or 'freeze the clutch' could mean there was excessive effort coming from the compressor:
    -Is the cabin evaporator/heat_exchanger clean? (it could be clogged). If the compressor sees liquid instead of gas it will block and the pulley will immediately throw the belt off it's normal path because the clutch won't let go until the temperature setpoint has not been achieved.

    There should not be any engine malfunction code in case an accessory fails and the clutch is part of the compressor, it is not related to the engine.
    Good luck :)

    -
  • lj1sblj1sb Posts: 2
    A/C Compressor will not come on in ANY position. Blower only comes on in Position 3&4. Does not matter if the engine is warm or not...won't come on. As mentioned, I can maniulpulate the compresor clutch to engage and a/c to come on if I throw 12v straight to the compressor or compressor relay. As mentioned, the A/C compressor was just replaced.

    What is the cabin evaporator/heat exchanger? Where is it located? And can I do a visual inspection or test on it to determine if it is the culprit?

    What about my other question...the blower resistor appears to be faulty as the blower only comes on in Position 3&4....will this also prevent tthe A/C from coming on, even in Position 3&4?
  • caribou1caribou1 Posts: 1,351
    Can you manually turn the rotor of the compressor while you force the clutch?

    The evaporator is the heat exchanger that cools air in the cabin. On mine it's above the passenger's feet, just behind our miniature glove box ;)

    If you have pollen or leaves accumulated against the evaporator, there might not be enough air flowing through to evaporate all of the A/C liquid. This could be enough to block the compressor because you can compress gas but not liquid.

    Our A/C compressor pumps gas, then gas becomes liquid while flowing through the condenser/chiller located in front of the radiator. This liquefied gas will later evaporate when confronted to the warmer cabin temperature; at this stage ONLY gas must return to the compressor for another cycle...

    I don't think of any relation between the resistor positions and the A/C?
  • I have a 2002 liberty and had a similar problem. No sunroof. Turns out my water leak came from the drain holes at bottom of vehicle which are hidden from view were clogged. There are drain holes at bottom which allow the water coming down window track and door seals to drain out and they sometimes will clog and the water will then find its way into car thru any hole it can, usually down by foot where hood latch release is. If you pull the plastic molding by hood release off and you will see a small 1/2 inch long slit by some bolts. My mechanic stuck a clothes hanger wire in there and poked around until he found the hole at bottom and lots of water came rushing out underneath car. Problem solved. He was not sure how else to clear the clogged drain holes, just did what he could to figure it out. Hope this helps.
  • caribou1caribou1 Posts: 1,351
    Hi fishinsteve,
    I don't understand where the clogged drain is located.

    I found lots of dirt accumulated between the decorative plastic liners and the body, right underneath the doors. This is where bottom panels join the chassis. To remove the residue where perforation can occur, we need to replace the 'one-shot' plastic fasteners or to paint this 'vertical' area in black.
  • This is the weirdest thing I was at a car wash & when I dropped off my car all the fan speeds worked with or without the AC on. I get in my car and #2 does not work at all, but 1, 3 & 4 are okay with or without the AC.. Has anyone had this same problem? Its still under the factory warranty until 100,000 miles and I only have 55K, Im wondering if this will be covered? II guess I could live without #2, but #3 is so loud, is this a big deal?
  • 2006 liberty diesel. some mornings the a/c gets cold within seconds. later in the day it stops working cold and blows warm air. other mornings it blows warm when started and will not get cold. it's iratic, cold, not cold.i'm headed to fl withing weeks and need help.
  • fideaufideau Posts: 1
    Had same problem with 02 Liberty. The AC drain is too short and gets easily clogged. Even wind will drive water back into the cab as you drive. Its on the firewall, passenger side.After several "clean outs" a mechanic at my dealership took a piece of hose and lengthend the drain, turned it down a little. Only about 5 inches of hose. Problem solved. It's just one more of those bad engineering problems on the Liberty.
  • Problem solved. It turns out that the sensor on the receiver/dryer went bad. when the plug was disconnected and the plug terminals jumped, the compressor started immediately. they do go bad.
  • My heater blower stopped working on the fourth setting and now it does not blow at all. any suggestions, I would love to be able to fix this myself if it is no too involved.
  • i'm not sure if they will cover it but you could try, and yes it is a problem i had the same kind of problem 1 went then 2 a while later and then 3 and then 4 worked for a while and then 3 went i talked to chrysler and they said 4 would never burn out well thats a lie i have no heat or a/c 1,2,3,4 dont work if you can get it fixed as soon as posible do it. (not sure if its covered though)
  • I heard that all you need to do is take off the panel right by the hood realse button and there will be a hole or something just get something to pook around with in there it's probly just a plugged drain to drain the water out hope this helps :)
  • i have an '05 with 76000 + miles. only recently had any issues. my a/c and heat only work on setting 4. sort of annoying! then just the other day i reached behind my passenger seat for something and it was soaked. i have the all weather heavy duty floor mats so i never noticed anything being wet. i was not sure if it was the intensity of my hvac these past few months or what. but now that i have read some posts it seems i am not alone. i am not terribly mechanical but i would like to try and fix it without taking it to a shop. can someone explain a little more in detail how i would add hose to the drain. would be much appreciated!
  • My jeep warms up in the morning but will not blow warm air into the cabin unless I am moving. The fan is working and I can still change the flow of air. Are there two blowers for this vehicle ro even two different fuses? Looking for a reasonable plan of action.
  • I have a crack in upper right hand corner of radiator.not in seam,no stone or other marks.what could cause this?
  • tidestertidester Posts: 10,109
    My first guess would be either defective material or quality control on the assembly line.

    tidester, host
    SUVs and Smart Shopper
  • I have a 2005 Liberty Renegade. The A/C compressor kicks in and out even when I have the controls on vent only. I have never had a vehicle to do this. Is this normal to the Liberty? If not, what would be the cause? Thanks in advance for any suggestions.
  • ppradierppradier Posts: 1
    Hi,

    My Liberty CRD 2005 ventilation fans doesn't work anymore when set on position 1, 2 or 3 but work normally when on position 4, I check all fuses and they all are ok, any idea where to look next?

    Thank you!
  • drumskidrumski Posts: 1
    My compressor would come on and blow cold air but would cycle off like it was low on freon, the clutch would disengage. If I tapped on the compressor the clutch would engage and start working again. It started to happen more often, mechanic said I need a new compressor.
    THE FIX: Behind the clutch is a washer, removed it and replaced the clutch. Never had any problems since, I did it over a year ago.
  • vicvillevicville Posts: 19
    Does the 2008 have a in cabin air filter to replace. I thought i remember reading it in the jeep book, but no one sells the replacment.. or is it a dealer only service..
  • i have a 2003 jeep liberty i found a lot of water under rug i mean a puddle on passenger side . has anyone figured out what the water is coming from ? :confuse:
  • bblawmanbblawman Posts: 2
    HAD THE SAME PROBLEM IT WAS CAUSED BY LOW ANTI FREEZE WHEN I TOPED IT OFF IT WORKED FINE HOWERER EVERY FEW WEEKS IT WOULD HAPPEN AGAIN COULD NOT FIND WHERE I WAS LOOSING FLUID!1 WAS HOT HEAD GASKET , NO WATER IN OIL & PLUGS LOOKED FINE. PUT CARBORD BOX UNDER CAR AT NIGHT NEX MORING NO FLUID ON BOX IT TURNED OUT TO BE A SMALL HAIR LINE CRACK ( ABOUT 3/4 INCH LONG) IN RADIATOR AT TOP RIGHT CORNER ONLY WOULD GIVE OFF STEAM WHEN CAR WAS RUNNING AND A SMALL AMOUNT AT THAT IT WAS JUST BY CHANCE I FOUND IT WHEN I PUMPED AIR IN COLD RADIATOR ( WITH CAP PUMP A TOOL TO FIND COOLING LEAKS) IT DID NOT HISS OR LEAK
  • bblawmanbblawman Posts: 2
    HAVE A 2002 JEEP LIBERTY AC WORKS FINE AS WELL AS HEAT ALL FOUR BLOWER POS. WORK HOWEVER THE AC COLDEST SELECTION , THE ONE THAT RECIRCULATES AIR FROM INSIDE CAR ( FRIST POS, ON SELECTOR) AIR BLOWS OUT SLOW ALMOST LIKE SOMTHING IS BLOCKING IT ALL OTHER SELECTIONS THAT TAKE OUTSTDE AIR WORK FINE! ANYONE HAVE AN IDEA WHAT IT COULD BE? JEEP TELLS ME THIS YEAR DOES NOT HAVE A FILTER
  • Replaced AC compressor last fall and system worked fine then. No cold air now when I need it last week. AC compressor clutch does not engage. Ran jumper wire on low pressure switch and clutch still won't engage. Applied separate 12 volt source to AC clutch at pigtail on top of compressor and the clutch engaged ! Anyone have any ideas why system not supplying power to the compressor clutch on its own ? Thanks
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