The radiator is old and I think developed a pin hole right under the hose that plugs into the radiator on the left and leaks coolant under pressure. Like when I am going up big hills or though the mountains. What am I looking at cost wise to get that fixed? And will fixing that make it stop over heating. I recently went on a trip and when i hit the mountains had to stop a lit when it over heated and let it cool down. i could see the hole that was spraying fluid.