I just had a tune up about 2 months ago because it would shake really bad when I would drive it first thing in the morning. After the tune up it worked fine. I also had the serpentine belt replaced. My radiator leaks. I put Stop Leak in it but it still leaks. I have to add water to it every morning and the farthest I drive in a day generally is 50 miles. The past week we've had snow and temperatures down to 0 degrees. I did not drive it at all the past week. Yesterday, I drove it into town; worked great. Later that night I was going back into town and this problem. Thank god it's winter break and don't have to go to school. I hate this truck sometimes. It's an old farm truck. Ughhhhh