I have a 2011 nitro shock, the AC hsnt worked properly since I purchased the vehicle new. It has been into the dealership every year at least twice for the same issue. There is no Freon in the system, the use dye, charge it and tell me to come back. After about 2-3 months it stops working and I go through the same charade again. Theyve replaced the compressor 3 times. I took it to a new dealership because I wanted a 2nd opinion. They charged the system, put dye in it and STILL can't find the leak. They aren't giving me any solution either. I got a free extended warranty because of this issue but that warranty runs out in 4k miles. Anyone have any suggestions? ?