That's my point, some shops will stick that drain plug back in, call it a day and it becomes the "next guy's problem." That seems to be the new norm. My buddy is $1350 into a hacks attempt at repairing his AC. Two compressors and a condenser, no leaks and it's still blowing hot. This is after diagnostics and the mechanic stating it's not the blend door, or relay. lol Tomorrow it is going back for some additional troubleshooting. I'm not going to get into the what should have been done, I'm only bringing up the fact that the industry is loaded with hacks unfortunately. They give good mechanics a bad name and reputation.