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Old 04-04-2007, 08:51 AM   #4
MNBoxster
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Join Date: Sep 2005
Location: Minneapolis/St. Paul, Minnesota, USA
Posts: 3,308
Quote:
Originally Posted by porschedude
I would put half a can of R134 and see if AC cools down. If AC blows warm again in a week, then you have a leak. You only need to deplete the system and vacuum if there is a leak and you need to repair the leak. It is not a good idea to merely release the R134 to the atmosphere. If you have not charged the AC system in 4-5 years, then you are probably a little low on R134 and that is quite normal. You can purchase a can of R134 anywhere without a license but not for R12.
Hi,

If he needs to add refrigerant, then he has a leak. Also, adding only refrigerant does not ensure a proper level of compressor Oil and this will cause premature compressor failure.

You can buy R134a, but according to Federal EPA Law, it's still unlawful to service the system w/o certification or a Recovery Machine - a Catch-22, I agree, but there it is...

Happy Motoring!... Jim'99
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