How can I test an expansion valve? Can I test it on the car? Does the car have to be running with the a/c on to test?
I know it was said that it had just been read, but how one someone pour liquid refrigerant on something if the wanted to. It just seems as soon as it is no longer under pressure, or not under very much, the refrigerant would turn to gas making it impossible to pour.
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I bought a can of 134a at w**-mart that had a stop leak, oil, and dye in it. It also had a hose and a gauge, so now I'm an AC pro!
True, but that would be considered venting and is illegal. But it would work.
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I bought a can of 134a at w**-mart that had a stop leak, oil, and dye in it. It also had a hose and a gauge, so now I'm an AC pro!
How about having access to the lines. I heard the low side should be cold and the high side should be hot, but I don't know much of anything (yet). What I do know is my low side line is luke warm going to the expansion valve and the high side line coming out of the expansion valve is ice cold going to the drier which is ice cold too, then the high side line from the drier is super hot. My AC is not blowing cold and only have the low side gauge and says zero psi, add a few ounces of 134 and the low side line gets cold, pressure fluctuates from 45psi to 80psi as clutch comes on and off, then when I start accelerating the 134a shoots out the relief valve..? I also I know I have looked at about 50 related and semi related blogs and videos and noone answers the questions about expansion valve or seems to have the problem I have, but I bet there is millions of people that use the low side only charging hose and gauge and a good handful must of had this happen... HI?
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