Need Help With AC
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Joined: Jul 2003
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From: little rock
Need Help With AC
today i went out driving and my AC is not hot but not cold. So i went to Autozone and bout 3 cans of r-134 and the little hose. well i got home and i hooked the hose up to the onlt fitting it would go on so i assumed it was right. I then opened the valve to the can but it wouldnt come out. do i need to empty my system before trying to add new r134 or what how come it wont come out of the can. could someone post some info that will help me please i need AC thanks
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Joined: Jul 2003
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From: Chi-Town, Illinoize
it usually comes out, and you cant really tell, other than the can getting lighter. 3 cans seems like alot. I used only one. U are suppose to let your A/C run for 10-15 minutes. And basically i pumped some for like 30 seconds, then went to feel the air, repeated this til it was nice and cold. If u put too much, it can be bad. Oh and i bought the one with the hose already attached.
Tech in Training
Joined: Feb 2004
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From: Carmichael
What you probably did was contaminate your system with sealer. Those aftermarket cans of refrigerant always contain sealer and more often than not do nothing more than to expand your rubber fittings, but try to use them on a recovery machine and it clogges them up. Those aftermarket kits are good if you are selling your vehicle and don't feel like paying big bucks to get the a/c serviced, but personally I would never do that again if I am planning to keep the car for a while. Plus, I never trust those gauges either as you low and high side pressures fluctuate based on the weather temperatures. The best way to get efficiency out of your a/c is to take it to a shop and have them fully evacuate, recover, vaccum, and re-charge, that way you get the proper amount of refrigerant charge in your system and flowing through the evaporator to cool (refrigerant actually changes from a liquid to gas in your evaporator, which acts as a radiator sort of speak, since your evap is like a heat xchanger).