Just got back and AC shot - JeepForum.com
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post #1 of 6 Old 08-22-2009, 01:24 PM Thread Starter
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1998 ZJ 
Join Date: Apr 2009
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Just got back and AC shot

Well, I went away for my 2 weeks annual training with the Marine Corps and I got back and was thrilled to find my Jeep started up perfectly. The AC, which blew cold as ice 2 weeks ago no longer works. I thought I must have had a freon leak since the lines weren't getting cold (so not a blend door problem). However, upon looking at it closer I noticed the compressor wasn't going on.

I tried swapping over the relay and that didn't solve it. However, the relay does click when inserted into the socket, so I don't think it is the climate control unit.

Next up I figured the clutch must be shot, however if I remove the relay and insert it one out of 5 times the clutch will engage for a second or so then disengage. So... anything I should be checking? There are only a few hot days left this summer but I am going on a short trip next week and would really love to have AC.

Edit: Am going to recheck all fuses and Low Pressure switch as per what I read in some other threads and report back



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post #2 of 6 Old 08-22-2009, 01:41 PM
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Jump the pressure switch to see if the compressor engages. If the compressor energizes and it's low on gas, the oil won't circulate, so don't let it run too long. Get a set of gauges and put on the system to be certain.
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post #3 of 6 Old 08-22-2009, 04:40 PM
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just take the doors off like i did...just kidding hope you have better luck then i did my berring preatty much expluded and took the belt with it if you dont figure it out carquest has a belt that you can run under the compressor on the 5.2 model i can give you the part number if you want

83 cj7 with a 79 cj5 304 v8 2.5 inch suspension 31 10.50 15 and soa coming soon
96 grand cherokee 5.2 318 stock on 33 with a custom snorkle built not bought #116
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post #4 of 6 Old 08-22-2009, 05:19 PM
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x2. Check your pressure to see if all the refridgerant has leaked out. If its too low the compressor will not engage. I would start there but it would seem that is what has happened if it worked 2 weeks ago.
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post #5 of 6 Old 08-23-2009, 08:14 AM Thread Starter
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Added refrigerant and it is good to go for now. Thanks for the help. Hopefully its working fine in 2 weeks.

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post #6 of 6 Old 08-23-2009, 10:17 AM
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It will not be. Its got a good sized leak to completely discharge the system in 2 weeks. You need to get the leak fixed.
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