Ok I was having a problem with The coolant boiling over and the car overheating. I noticed the fan wasnt kicking on, so I checked the relay and fuse and replaced the fan. Still Nothing. I turned the A/C on and nothing. So I ended up wiring in a bypass switch and the Fan works great now. Any clue why the fan will not turn on when it needs to? I also am noticing now that the temperature gauge will go up a bit higher then half maybe 3 quarters and them drop back down to half.

Maybe youre temp sending switch has failed.