Strange A/C problem

HOOCBB said:

First of all, it's R-134a, not R-13a.

Second of all, the molecules of R-134a are smaller than the R-12 molecules, which is why you should replace any rubber lines with updated pieces on some retrofits. The rubber used with R-12 has larger pores and allows the R-134a to escape easier. This is the ONLY time freon would leak without a failure in a more recent automotive application.

Third, freon doesn't just leak. There is ALWAYS a failure that causes the leak. Does your radiator leak "no matter what"? No, they are sealed systems and only leak when there is a failure. Same thing with any of the fluids.

Last, please stop giving bad advice when it is clear that you don't know what you are talking about. There is NOTHING wrong with his compressor clutch as it disengages and re-engages fine as tested through the low pressure cycling switch. You could cause him to spend $1k+ on a compressor job that he may not need.



To the OP, if you can, please get a good set of gauges hooked up to it. Then report back to us with the static pressure and the running pressures (high and low side). This will help us determine what your next step is.

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trombonedemon said:

Ummm?! Right? If he will spend a grand on fixing a compressor then thats a great joke, compressors don't cost a grand,600 maybe for a conversion kit, maybe. Wow, Mr. Wizard wants to challenge me in science, my little a/c tech, didn't know you would get pissed on a typo. O.k. maybe the man wants to buy a new compressor, as they do go bad, second it would be great experience to change one, he will be smarter for the experience, hmmm!? Its not a major problem, the car is still drivable, and he can get system recharged for free. Sounds like someone is overly pissed, now if you don't like my advice, you don't have to read it, very simple huh? Its just an opinion, a free opinion, if I'm wrong, then I'm wrong, grow up, its not the end of the world Mr. Techy, I call B.s. freon does just leak, nothing is completely air tight, and yes every radiator leaks, its called, whats that word, EVAPORATION. Darn Mr.Tech, thought you knew. EVERY THING LEAKS, no matter the appliation, sorry didn't know I had to get technical, on molecules, I can go there if you want. My goknads are big enough!! I don't know the specifics of his problem but, I like to work on cars, so if I have a chance to completely change out a system, then damnit I am going to provided that I can afford it and my car is drivable. Freakin EGOS. Let it go.
I hope you get your car fixed, a/c makes for a happy mustang driver!Stangnet

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