No cooling, multiple problems

all right y'all on this one we have a oh my word what we got here we got a no cooling called dripping and oil if i put any kind of gauges on it you can see the bubble search that right there it's bubbling clicking it means my threads are all the way out so you pull this out and turn it slowly as you pull it out that got it here's my o-ring now it's running and cool i know we're going to be low so i'm going to put my see if i can put this on if i want to be able to use that good i got a true suction i have a hot head and heat low suction and cooling made this repair right here pump this down i got a suspicion of what i'm going to find up top before i open this up i did check the coil to make sure it wasn't dirty then i decided to check txv and see if it it had a piston now see i have proper suction i did have a superheat of 30 degrees and a low suction pressure taking that piston out has made everything work right full disclosure on that one i knew that that coil had been replaced and i knew it had a txv on it i was not sure there was a piston in there it was just a hunch that i had but that's what it turned out to be