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2005 Jeep Liberty AC not working


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Dopey92
New User

May 2, 2010, 10:53 AM

Post #1 of 11 (10671 views)
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     2005 Jeep Liberty AC not working  

Hi all,
I have a 3.7L V6 with 60,000 miles on it.
After a winter of non use, I pushed the AC button yesterday to get some much needed cool air. The button light is on, but no cool air was coming out of the vents regardless of any speed or direction of air flow.
After parking the car in the evening, I checked all the fuses and relays (I just swapped out a similar one to test this) and there were no apparent issues.
With the engine running and watching the compressor, I asked someone to turn on/off the AC switch, and it did not "engage".
We tried it using various fan speeds and directions (including the defrost), and nothing changes.
There is no apparent leaks at the compressor or evaporator.
There has been no problems up to now.
Put the ODB reader to it and no codes show up.

Would the next step(s) be to do a compression test to see if there may have been a pin-hole leak? (what tool do I need, $............can I recharge system myself?)
or could it really be the death of the compressor (I'm hoping not.....EXPENSIVE!!!).

Thank you all any assistance.....

Oh....there is one thing that I did change the blower resistor last year when I had the problem of fan speed 1 not working (all others were)....not sure if there are any links....I have the old one....wondering if I should switch it back.....just to see....


Hammer Time
Ultimate Carjunky / Moderator


May 2, 2010, 2:17 PM

Post #2 of 11 (10661 views)
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     Re: 2005 Jeep Liberty AC not working [In reply to]  

Regardless of what fails on an A/C system, the result is pretty much the same, no cold air and usually no compressor. It could be an electrical issue or it could be just shut down do to lack of refrigerant. Your first step is to have the pressures checked with a set of professional gauges. If it is low on refrigerant, that means you have a leak to find. Simply recharging it just prolongs the problem and many times does a lot more damage to the system from running it low.




~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Tom Greenleaf
Ultimate Carjunky / Moderator


May 2, 2010, 5:15 PM

Post #3 of 11 (10656 views)
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     Re: 2005 Jeep Liberty AC not working [In reply to]  

Follow HT's suggestions and don't just go adding refrigerant. Take a static pressure would be telling. Chart is locked above at this section...........

http://autoforums.carjunky.com/...Chart_-_134a_P59651/

If below for the temp system is pretty close to empty - duh it leaked. May be electrical but this test is easy enough. Evaporators are well known to fail in these. Nasty and labor extensive. Never say never and who knows right now. A tell tale is oiliness in the condensate drain that evap is the unseen leak but test every way and everywhere first if (might not be) low on refrigerant,

T
_________________________________________
Long retired now


(This post was edited by Tom Greenleaf on May 2, 2010, 5:19 PM)


Dopey92
New User

May 2, 2010, 11:11 PM

Post #4 of 11 (10648 views)
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     Re: 2005 Jeep Liberty AC not working [In reply to]  

Thanks HT&GT for the advice.
Buying a Professional Grade gauge(s) is probably not feasible for me since I will probably only use it once.
I checked with the Dealer close to me, explained the situation and they told me it would cost $65 for an "AC check", and if there are no apparent leaks, they will attempt to charge it bringing the figure up to ~$100...buying the gauges would probably be about this price, if not more (guessing).
If it's anything else, they said they would let me know before doing anymore work.
I'll try to bring it in tomorrow and let you guys know what happens.
thanks again!Smile


nickwarner
Veteran / Moderator


May 3, 2010, 3:11 AM

Post #5 of 11 (10644 views)
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     Re: 2005 Jeep Liberty AC not working [In reply to]  

If you want to save on diagonsis, contact your local tech school automotive dept. They don't charge labor and its a learning experience for guys that will end up in the shops that you go to. If the cost is too much you can always decline the repair. The instructor is ASE certified and checks the work. The students get credit for finding the problem. But its only during the time they are on that unit in the class. Any other time youj have two choices: roll down windows or pay a good shop to repair this right. Don't just look at the price, as the equipment to do it right is very pricey and takes a lot of training to use. The men who do this work have a large investment in training and tools to know for sure what you need. Let them look at it. This isn't an easy system to work with.


Hammer Time
Ultimate Carjunky / Moderator


May 3, 2010, 5:54 AM

Post #6 of 11 (10646 views)
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     Re: 2005 Jeep Liberty AC not working [In reply to]  

$65 is a bit steep. Most Independent shops will do a diagnostic for under $40. I do it for free. Just make sure they do a lot of A/C work and know what they're doing.

The gauges can be bought cheaper than that also.
Here's one example
http://www.amazon.com/...GA/ref=pd_sbs_auto_2




~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



kingdomcome
New User

May 7, 2013, 8:21 PM

Post #7 of 11 (4018 views)
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     Re: 2005 Jeep Liberty AC not working [In reply to]  


In Reply To
Follow HT's suggestions and don't just go adding refrigerant. Take a static pressure would be telling. Chart is locked above at this section...........

http://autoforums.carjunky.com/...Chart_-_134a_P59651/

If below for the temp system is pretty close to empty - duh it leaked. May be electrical but this test is easy enough. Evaporators are well known to fail in these. Nasty and labor extensive. Never say never and who knows right now. A tell tale is oiliness in the condensate drain that evap is the unseen leak but test every way and everywhere first if (might not be) low on refrigerant,

T
I have the exact same problem with my 2005 jeep.
I found this set for sale at our local Canadian Tire store.

link deleted. Contact admin for permission to use link.
Is the gauge included in this kit the same as the grade gauge needed to make a static pressure test?



(This post was edited by Discretesignals on May 7, 2013, 10:40 PM)


HT
User

May 7, 2013, 8:24 PM

Post #8 of 11 (4010 views)
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     Re: 2005 Jeep Liberty AC not working [In reply to]  

You need to start a new question of your own. Don't hijack someone else's.


kingdomcome
New User

May 7, 2013, 8:54 PM

Post #9 of 11 (4006 views)
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     Re: 2005 Jeep Liberty AC not working [In reply to]  


In Reply To
You need to start a new question of your own. Don't hijack someone else's.


No hijacking intended.

I thought I was contributing to the original question, since Dopey92 was concerned about the price of doing the repair himself compared to having it done by a mechanic.

Dopey92 said and I quote...

" Thanks HT&GT for the advice.
Buying a Professional Grade gauge(s) is probably not feasible for me since I will probably only use it once. I checked with the Dealer close to me, explained the situation and they told me it would cost $65 for an "AC check", and if there are no apparent leaks, they will attempt to charge it bringing the figure up to ~$100...buying the gauges would probably be about this price, if not more (guessing).”


I presumed that my question would be of some assistance to Dopey92 since the product I'm am suggesting might be a cheaper alternative to a professional garage job, if I am wrong I will start a new post.


(This post was edited by komodo on May 7, 2013, 8:56 PM)


HT
User

May 7, 2013, 8:58 PM

Post #10 of 11 (3999 views)
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     Re: 2005 Jeep Liberty AC not working [In reply to]  

This thread is 3 years old. Please read the FORUM RULES and do not post to it again.


Discretesignals
Veteran / Moderator


May 7, 2013, 10:36 PM

Post #11 of 11 (3993 views)
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     Re: 2005 Jeep Liberty AC not working [In reply to]  

Like HT stated this thread is old and pretty sure the OP has resolved the issue by now. Thanks for the advice though.Wink

Thread locked due to age.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on May 7, 2013, 10:39 PM)




2005 Jeep Liberty AC not working


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