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Unread 07-11-2012, 09:53 AM   #1
narnwv
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A/C Transducer

Hey guys. Need a little help with this one.

My sister has a 2005 KJ. Her air quit working, and I told her to take it to a shop (as I didn't want to deal with it). They told her that the "transducer" was bad. I laughed, as I've never heard of a transducer. Well apparently, Jeep calls the pressure switches on the KJ "pressure sensor transducers".

I'm trying to get it fixed for her today. Any idea of which one it would be? High or low?

I believe there's a leak in the system, because she put a can of 134 in it, and it cooled fine for a day, then quit cooling. I hooked my manifold gauges up to it last night, and jumped the low pressure switch, and still couldn't get the compressor to turn--and the gauges just read zero.

Any help would be much appreciated!

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Unread 07-11-2012, 07:19 PM   #2
narnwv
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Thanks for the help!

To test for a leak, I pulled vacuum on the system and found a largish hole where the condenser has the welded on mount on the driver's side. I told her we needed to get a condenser, and we'd go from there.
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Unread 07-11-2012, 07:51 PM   #3
narnwv
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that's the plan. I dumped a can of 134 into it a month or so ago before she went on a trip. She came into Autozone while I happened to be there, and I didn't have my manifold gauges or vac pump with me. She bought the can with hose, and it took every bit of it. Once to her destination (3 hours) she didn't have cold, but it was still cool. That's when I told her it was a pretty large leak and to take it somewhere. My guess is they probably tried to rip her off, as they should've at least pulled vacuum first and heard the leak right? I don't know. I told her it was probably just the condenser that needed replaced, as where the crack is, it would be too hard to tell if JB weld or something like that would last.
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