Hello all. 2013 Hyundai Sonata GLS here in Florida (where its 102 degrees). Charged freon to proper pressure. I know its not measured by pressure but by ounces, however this is how the storebought stuff is. This fixed the AC for about a week. Now hook up again and check and the pressure gauge is in the red. Bleed some off. No fix. Deplete the system. Now as soon as I try to re-service the freon, the gauge goes to red within 3-5 seconds. I allow it to stabilize and it stays red. And yes, was watching compressor for clutch to kick on/off. Works as advertised. Please help!!!! Its so hot here!!!