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MasterJedi
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23 Jul 2011, 8:04 am

anyone know how to recharge the AC in a car?


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danmac
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23 Jul 2011, 8:08 am

go to an auto parts store. they have kits that are eazy to follow.
w/ cars a lot of the time there is a leak in the line, so if your car has no cold air what so ever, then there is nothing you can do....but it's worth trying!!


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Grisha
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23 Jul 2011, 8:37 am

I like to work on cars, but opening the AC system is best left to the professionals. I don't believe the OEM refrigerent is even available to the public. Shop around for a good price...



Katatonic
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23 Jul 2011, 9:03 am

If your car is pre '94 then you'll have to take it in because you would need R12 refrigerant which.......well, it isn't sold anymore so you'll have to upgrade to a new system that uses R134. You can buy a recharger kit and do it yourself if you're pretty good with cars. Even if you're not a pro, its still pretty easy. But be careful with that freon stuff. It will freeze ANYTHING. Just look up on google instructions for recharging your AC. Honestly, it isn't that hard to do it your self.


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kx250rider
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23 Jul 2011, 10:58 am

I have some training in this, but I'm not an experienced pro or anything. First, if you need freon added, you have a leak. Usually the leak is either the hoses, or a faulty compressor seal. The correct way to repair it is to verify what's leaking and fix it before adding freon.

If you have a super-slow leak (holds freon for the whole season, etc.), and you just want to do a quickie repair, you can try adding freon (12 or 134, depending on year of car). The problem is, that the system won't work if there's too much freon, just as with too little. You really need the correct amount, which is met by removing all of the freon, then putting the system under a total vacuum, then letting the specified amount of freon into the system along with the proper quantity of new refrigeration oil.

Now with the correct methods said, you can try getting one of those cans of refrigerant at WalMart, and the adaptor to put it in, and see if that works. Start the car, and turn on the A/C, and make sure that the radiator fan is on. Follow the directions on the can and on the adaptor you buy, and hold the can upside down and let the contents suck into the system, and the compressor should start up as soon as there's enough freon to un-trip the low pressure safety sensor off (turning the power back on to the compressor).

Honestly my best advice is spend the $30 or so, and have a shop do a quick diagnostic on it first, and let them put the freon in. At least it will have closer to the correct pressure, even if the leak isn't fixed.

Charles