I was driving home last night and I looked down at the temp gauge and saw it rising. I watched it for a second to see what was going to happen. It kept going up so I turned off the car and costed in neutrel for a couple of minutes. I turned the key on and the temp had went back to normal so I started it back up and kept driving. Long story short I had to do this 3 more times to get home. It was a little low on coolant today when I checked it out so I put some in it and the overflow was almost full to the top. I started it up and let it idle and get up to temp. The gauge goes up to normal and never moves. So I take it out for a drive and 2 minutes later the gauge goes up again. I let it cool off and start the drive home and the gauge never moves. This is confusing the s**t out of me. So can some one give me some input.