I'm trying to get my ac running again and am having some problems. I have a conversion kit and all the filling went as planned but the high pressure fitting on the thin tube is leaking and i dont see a way to remove it to replace it. being frustrated i just wanted to cap it but my better judgement got the better of me. HELP

 

anyone?

 

you'll need a valve core removal tool, get one that is double sided like this one so you can remove small and large cores. $5 at carquest, they also have the proper valve core for like $1.