I just had my AC checked. It was not even blowing cool air. I expected the worst. Pleasantly surprised. I think my Jeep sat a lot with the PO.
My guy pulled vacuum. Held vacuum for four hours. He then charged it with nitrogen (I think he said 400 psi, but I am not sure). He found no leak.
He charged it and it is blowing ice cold even in this 100 degree weather. I have had it back since July 25. Fingers crossed