might be worth checking all lines and connections for wet oily spots. if they put dye in it you can use a black light to find the dye, but chances are it will be hard to see if it was done in 2016.Maybe, but very very slow if so, but I don't think so. I see that I had described the AC back then as "ice cold" as well, but it is a very relative term. It was colder than it used to be after the recharge, but still not "amazing." And one year after that, the compressor started shutting off if I drove hard for a little bit in very hot weather. Now, the AC is amazing even in 95-100F weather and it never shuts off.