So I have this very weird problem: My A/C is fully charged, with a new receiver/drier and new evaporator. It runs great when the temps outside are below 70 degrees, but above that the A/C cuts out almost constantly and the clutch spends almost no time engaged. I tried testing the pressure sensors on the receiver/drier while it was doing it's funky on/off bit, and I saw no voltage change at all. I got the same results when i tested the small single wire sensor on the compressor. Any ideas as to what could cause the A/C to cycle off so much?
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A/C only works when it's cold outside
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I have been working on my AC too. I think I am done with it. It doesn't cool like I think it should. I get 49 degrees output when going down the road at 50 mph & 90 degrees outside (R-134a, new compressor, receiver/drier, expansion valve and all new O-rings). I think I am going to flush the entire system and refill again. I didn't do it the first time. Anyway, I found a forum that is very helpful. http://acsource.net/acforum/sigpic
Aston Martin in flight at Mid Ohio 2006
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