Quote:
Originally Posted by slk230red
I'm not sure...I have always let my pump run for 20 to 30 minutes and then charge the system. Never had a problem with this method and I always replace the drier/receiver when I open the system.
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What is it going to hurt? The vacuum will help pull all that moister ladened air from the lines and the dryer and the evaporator,my uncle was a votec teacher for a/c and he was always telling me to let it pump,the longer the better! most customers cant wait around but if you can let it rip.JNT
