Today my caddy overheated. Twice. I put some water and antifreeze in it and it ran out. Apparently the drain plug had broken off inside the radiator. What a pain the butt. Had to lift the radiator out to get to it. Haven't put it back together yet but I'm worried about damage to the engine when it overheated. The car was making a ticking noise and cut off on me as I just barely make it home. Do you guys think I damaged the engine. Some of the most oddball stuff happens to me.