After a good day in the mud my radiator was packed with mud. Started overheating, so took the hose to it. Got it home and went to town with the hose. Came at it from engine side and the grill side. Problem sovled. A week later drove about two miles and it starts heating up again. Reservoir was gurgling, steaming and empty. The heater was blowing cold air. I haven't noticed any puddles other than oil. 4.0 2004 lj.