and I got out to check it and it was leaking from top of the radaitor hose. It was doindg fine on the freeway. And now I start the car it stay on for a mintue then it cut off then, I try to start it right back up and it cut right back off. what could be the problem? could it just be it needs to cool off? I have a 1989 ford thunderbird 3.8 v6