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Old 05-20-2009, 09:26 PM   #1
joec wrx
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Default How to drain out A/C Freon?

How do I drain out the freon? I filled up my a/c with a can of R-134 from Kragen and I think I may have put too much. The kit I bought did not come with a pressure gauge, so I had to wing it. It squeals really loud when the a/c is on.

Thanks in advance!
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Old 05-20-2009, 09:30 PM   #2
Mulder
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You really can't do this yourself safely. The refrigerant is under pressure and if it contacts your skin or gets in your eyes, it can cause instant frostbite or blindness.
A shop will have the proper equipment to safely discharge the system, recharge it to the right amount, and check it for leaks.
AC work is not something you can "wing" or DIY unless you have the proper qualifications and tools.
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Old 05-20-2009, 10:39 PM   #3
joec wrx
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I was hoping to save myself money by doing it myself. The loud squeal is leading me to believe:

1. Overfilled the freon
2. AC Belt loose
3. AC compressor bad

#2 is ruled out as I tightened the belt and the sound is still there. I guess there is no way around this.. my wallet is gonna hate me for it but it's off to the shop.
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Old 05-21-2009, 11:46 AM   #4
crampfan
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I still can't figure out why a shop/tech has to be a/c certified to buy refrigerant, but a individual does not. our government at work I guess.
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Old 05-21-2009, 12:19 PM   #5
rick-l
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Quote:
Originally Posted by crampfan View Post
I still can't figure out why a shop/tech has to be a/c certified to buy refrigerant, but a individual does not. our government at work I guess.
You don't have to be certified to buy R-134 just EPA 609 certified for R-12.

You can be certifed for the Exam cost of $19.95. You can pass the test if you remember you are not supposed to vent refrigerant to the atmosphere.
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