Thanks for the info; I ran my vacuum pump on the tank for an hour after I let the nitrogen out of it. It probably wasn't much different than just letting it out into the air however it helped me feel better about not contributing to 'Global Warming'. Given than every time someone gets into anything more serious than a fender bender, their AC condenser will get damaged and vent the refrigerant into the air, I made an attempt to capture as much as I could. I have a HVAC guy that I can probably get to recover it. I spent pretty good money having the evaporator coil replaced on my home AC. He used nitrogen to pressure the system and then we went hunting for leaks.
Blowing nice and cold in city traffic today and the pressures looked more like what the YouTube Ford videos on the valve issue show.
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