Dodge Caravan

I will be more than gladly to make my donation if you can tell me what's the problem of my car, I have a 1996 dodge grand caravan 3.3 two houndred thousand mile and when I started and run it until the temperature needle reaches the middle it turns off automatic or it gets hot then you have to let it cool down, I already change the crank shaft position censor.
Thank you if you can help me