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Unread 06-08-2011, 11:16 AM   #1
NS1999XJ
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1999 XJ Cherokee 
 
Join Date: Apr 2010
Location: Tinley Park, IL
Posts: 111
A/C System: Need Info.

Hey everybody. I finally turned on the A/C in my Cherokee for the first time since I have owned it. Surprise, it blew out hot air. SOOOOO I bought the recharge kit from autozone and connected to the low port and turned the A/C to full blast and it got cold..... So I thought, coool ..... Well after getting back on the road running my errands, it started to get warm not hot though. I shut it off and rolled down my windows..... After getting too hot for that, I turned it back on and it got cold again then hot again..... I did this all the way to where I had to go... Whenever I turn the car off I can hear a hiss from the front of the car and a very quiet hiss from inside the cabin. I assume that its leaking somewhere but is there a way I can tell what part it is without putting the stupid dye into my system and seeing if its the evap core or the condenser??? Any help appreciated.

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Unread 06-08-2011, 05:05 PM   #2
davsfsj3xjs
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1987 FSJ Wagoneer 
 
Join Date: Dec 2010
Location: Denver, Colorado
Posts: 70
Sounds like you may not have put enough refrigerant in. Try another can, because if it leaked out, it would not get cold again, at all.
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Unread 06-09-2011, 02:24 PM   #3
AZ Jeff
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2000 XJ Cherokee 
 
Join Date: Sep 2005
Location: San Tan Valley Arizona, AZ
Posts: 7,310
Dye-type leak detection rarely works on finding evaporator leaks on XJ's. This means you need the services of a pro to at least FIND the leak, even if you want to fix it yourself.


Have a professional shop pull a vacuum on the system and see if it holds vacuum or not. If it does not, then the only SURE FIRE way to find the leak(s) will be with a partial recharge and a "sniffer".
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