I have a 1996 3.8. My car was getting hot so I checked the coolant. It looked really dirty so I flushed it and replaced the thermostat. Now it still overheats but it leaks. It looks like it is leaking from the passenger side head but I have no signs of a blown head gasket. I think my radiatorwas not rusty but had stop-leak in it. Is there any hose or anything over there that could be leaking? It never actually overheated, just got to hot for me to be comfortable to drive it. I flushed the radiator two days ago and had only water in it for a day. It did not even come close to getting hot with just the water. What could be causing this?