AC recharge questions Options

[lagos]

is there any way to bleed the air out of your AC system without having to take it to a shop? i understand that i shop puts it on an electric Vac pump that sucks all the air out of the system. is there any way to do this at home?

couldnt you keep refilling the low side, while venting the high to bleed it?

[WannabeGT4]

MaskedMan is right for the most part. However, having moisture in the system isn't bad because it will freeze, it's bad because when it mixes with the refrigerant it creates a corrosive acid that will eat away at your seals.

One thing I'd like to emphasise is that replacing the receiver/dryer, like MaskedMan suggested, should not be considered optional. I would not suggest skipping it if the system was open for any extended amount of time. It's been doing it's job the whole time the system has been open which is collecting water from the gases that pass by it. Not replacing it would be an unwise and potentialy costly decision.

If I were you I'd buy the receiver/dryer connect all of the hoses with new seals/O-rings and take it to the shop and have them pull a vacuum on it and do a leak test if you want. Then find out how much it will cost to have them go ahead an fill it and compare that price to the cost of a set of gauges and refrigerant... It will almost always be cheaper to have them go ahead and fill it unless you plan on filling other cars in the future then a set of gauges might be a good investment.