I’m having trouble with my a/c not getting cold sometimes 20 minutes into the drive, it never has ever since I got it, but I have put in a used eatc in about a month back, I’ve visually confirmed ac compressor not engaged for the duration of blowing hot air, but once it kicks in it’s fine does not seem to cycle on and off just stays on, low side pressure hangs out at 50 in a 90 degree day