I have a 2002 Linvoln LS 3.9l V8 with 115 thousand miles on it. I have had a couple overheating problems which led me to replace the thermostat, radiator cap and the coolant reservoir all together. My car runs fine for about two weeks without overheating or having any hiccups. Then it just pisses out all the coolant from what seems like the reservoir but can't seem to pinpoint exactly where. It is not evaporating, mixing in my oil or visibly leaking. There is no white smoke or the smell of coolant burning off. Has anyone else had this issue? I do not believe it to be a head gasket but it is absolutely driving me nuts, especially because it is my daily and seems to be fixed then inevitably dumps the coolant out all at once randomly. PLEASE HELP!!!