I need some help. I have a 2007 GMC Sierra ext cab. I have owned it for about two years, and I have been having some odd issues with it. I have been able to manage, but it is driving me up the walls. I have tried looking on forums and going to the shop, but no one knows what is going on. With that said, here is my problem. My AC is leaking water into my passenger side floorboard. I don't see where the water is coming from due to the fact that it is coming under my floor mats. I have tried to get my system flushed and get the draining path clear, but the problem keeps coming back. It is only when I turn on the cooling not the heating. Recently, I have had all kinds of AC work done on my truck. Firestone told me that the only thing they haven't replaced was the condenser. They said that the condenser isn't the issue with the water. I think it is because that is the only thing not replaced, and I have had this issue checked by them. I want to avoid going to a dealership. Also, this is kinda new, and I don't know if this is part of the first problem, but when I run my AC for a while I hear water moving around. After a while of hearing it, I will take a sharp turn and water will go all over my driver or passenger side floorboard depending on the turn. I was told that it was blocked, and they cleared it out. I'm kind confused that the drainage is blocked again. I only drive my truck on the road, and never go off road. I just can't think of anything that would cause it. Oh, and my air turns white from time to time. Can someone please help me understand what is going on with my truck, and how I can fix this? Thanks!