ac charge

[jacob wilson]

Hey im new to this but got a question. I hav a 2000 Chrysler Concorde and changed the ac compressor. Got it vacuumed out and checked for leaks do now its completely empty with no pressure. How do I charge it with freon?

Topic

[Joe]

first of all, since you said you’re new to this I’m going to say that you should apply a vacuum to the system for at least 2 minutes to see if the vacuum drops. If it does then the system is leaking and needs to be repaired.

second, you should replace your receiver/dryer as well. It’s kind of like the filter for the a/c system. You should change it anytime you service your a/c.

Once you do all that then you simply get some freon (R-134a on the off change you didn’t know that already). I get the big canisters from autozone and whatnot. Also get a digital scale to put under the can of freon. This way you can weigh the amount of freon going into the system and make sure that you don’t overfill it. There should be a small sticker somewhere in your engine compartment with the specifications on how much freon to add to the system. If not then google is your friend. You just take the same hose from your gauge set that you attached to the vacuum pump and attach it to the freon canister. Turn the engine and the a/c on and let the freon cycle into the system until the canister loses the appropriate amount of weight for your vehicle.

[Bill]

Save yourself a bunch of time, money and aggravation and have it charged by a professional. The few extra dollars it costs will be worth it in my opinion.

[EricTheCarGuy]

There is a LOT that can go wrong with AC work, not to mention the specialized equipment you often need, which is why I don’t recommend it for the DIY. That said, if you have a leak, there are ways of finding it. I cover that and how to properly charge an AC system in this article.

http://www.ericthecarguy.com/faq/solving-automotive-hvac-problems

Good luck and keep us posted on your progress.

[Author]

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