Some of you may know this, but I will share with those who don't. My cooling fan will turn on no matter what the radiator temp is by unplugging the temp switch near the water outlet on let side of engine! Good to know, if it is getting hot, and no manual fan switch installed!

 

Thats how I test my fan after I pull it out to clean it and my radiator. I have also used it when running a little hot some days just to try and keep it running cooler.

 

the only bad part is that the check engine warning stays on when you leave it unplugged.

 

I didn't realize that happened. I will check mine out. Even if it does, I guess it isn't THAT bad. lol!!!