Given the recent spike in temperature I tried the AC on a recently purchased gently used '01 Cherokee Sport. It worked fine for about five minutes, then the cool air stopped, replaced by a warm and humid air flow. Does anyone have any idea as to the problem?
Sounds like you have a pressure issue with the R-134, you either do not have enough, you have to much, or the system is blocked. My cherokee used to do that when I was sitting still because the pressure spiked as the condenser could not cool the R-134
Not sure if this is the same but my 90 yj ac will blow cold then randomly warm up. I had the freon checked and topped off. I've read other threads and they say my rpm's are too low. So I hit the gas some and the air cools off again. Do I have a problem or is this just how it goes with these ac systems?
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