This is what I thought would have happened by now. The thing is I didn't notice it wasn't coming on up until 4 or 5 months ago while I was changing my coolant. But then I thought to myself, I haven't heard the fan come on for months. So I'm guessing it hasn't been coming on for over a year. I know for sure that it hasn't been coming on for at least 4 months. I don't get it. Do you think maybe the reading on the guage is wrong, and it's really running hot?