Nope, you need to pump it down. The primary purpose of evacuating the A/C system is to remove moisture. If you have air in your system, you will also have moisture. Moisture can cause your expansion valve to freeze, and then your A/C no workie. Don't cheap out - have your system properly charged. You will appreciate it on those hot/humid SC days.
It would be cool if there were some gas developed that you could pressurize the system with that would grab all the moisture molecule in the a/c and drag them out the schraeder valve when you bled the gas back out. It would be so nice to not have to pull a vacuum before charging then a/c's would be owner servicable without buying or borrowing a vacuum pump from Vatozone.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Vatozone? That's funny right there I d'un care whoyar...Originally Posted by RedHeartbeat
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