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A/C Help (Jeep Liberty)

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Old 05-03-2012, 03:11 PM   #1
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A/C Help (Jeep Liberty)

I have an interesting A/C problem on my wifes Liberty. When you first start the vehicle up and turn the A/C on, no problem, ice cold just like it should be. Pressure reading says full (on low side).

Drive around a bit more and it starts to get warmer and gradually the pressure increases. WTF?!

I have made sure the coolant level is fine so as to not have the car to try and bypass the compressor. No leaks anywhere, so I am stumped. What is something that could be causing this?
Old 05-03-2012, 03:23 PM   #2
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Re: A/C Help (Jeep Liberty)

Is your e-fan kicking on when it should? Assuming its electric.

A couple things i've read are bad/corroded relays. Bad clutches at 90-100k and one guy had a bad BCM, but his was blowing hot/cold/hot/cold

I'd start by checking out the relay
Old 05-03-2012, 04:53 PM   #3
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Re: A/C Help (Jeep Liberty)

i was thinking relay too at one point, but had some other shit to do last night i passed over it. we shall check it out tonight.
Old 05-03-2012, 05:02 PM   #4
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Re: A/C Help (Jeep Liberty)

Hopefully your thread doesn't start getting the same love another one was getting, when someone mentioned Jeep:

Quote: Originally Posted by tohoopty
i think jeeps are gay
Old 05-03-2012, 05:18 PM   #5
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Re: A/C Help (Jeep Liberty)

meh, i can remove posts if need be.
Old 05-04-2012, 02:54 AM   #6
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Howd it go?
Old 05-04-2012, 09:43 AM   #7
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Re: A/C Help (Jeep Liberty)

Either the A/C pressure switch is bad, or the E-Fan isn't kicking on.
Old 05-04-2012, 02:02 PM   #8
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Re: A/C Help (Jeep Liberty)

as stated above the A/C fan sounds to not be kicking on.
Old 05-04-2012, 02:34 PM   #9
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Re: A/C Help (Jeep Liberty)

Wouldn't hurt to check the condensor for being clogged up as well.
Old 05-04-2012, 03:34 PM   #10
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Re: A/C Help (Jeep Liberty)

Quote: Originally Posted by deathphoenix99
Wouldn't hurt to check the condensor for being clogged up as well.
I had considered that, but if it was clogged it wouldn't be cold when it started up would it?
Old 05-04-2012, 03:51 PM   #11
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Re: A/C Help (Jeep Liberty)

efan kicks on as i have had it running with the hood up for a while and it turns on. i didn't get a chance to check the relay or pressure switch yet.
Old 05-04-2012, 03:52 PM   #12
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Re: A/C Help (Jeep Liberty)

im fairly confident your fan should kick on with the compressor.
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