Someone help me see what's wrong with my car. I don't really know what's going on. I've had it checked at the shop already. The guy doesn't know what he's talking about. Wasted my money. Here's the problem. My car heats up when there is traffic jam or when I drive really slow for a long time. Also heats up almost to the red line when I drive fast for a long time. Maybe a 2 hour freeway trip and slow down, then the temp. goes up. I don't know what's wrong. guy at shop told me that it was my radiator hoses. They are too small, so I had them replaced. It worked for about a few days. then same problem again. Someone know what's wrong? please help. thanks. This also happends when I have my car sitting in parking too. It's not the fans or temperature stats. I had those replaced already.