So the k5 started overheating a couple days ago, so I pulled over and checked the fluid level....lets say ZERO, ZIP, NADA. I filled it up got it home and checked the radiator the next day....same thing...nothing was nothing...I mean nothing. I cant tell where it was leaking cause the rain, but can you guys give me some problem areas to look at the will cause this to limit my searching? The radiator was replaced with all new hoses about 4 years ago and I have never had this problem before. Ideas????