Hey guys i need some help on this one. yesterday i drove to two town just fine. deposited a pay check and got gas still no problems. about 2 miles out of town on my way home i look down and my temp gauge is off the top past the red. it was fine and out of nowhere it just happend. ive never had a problem with that befor. so i pull over and the fluid is boiling in the overflow and spilling out. so i called my dad and we put new fluid in it. i drove about a min and it over heated agian. what do you guys think is wrong? there is no leak it hold fluid fine and there is none on the floor in the garage under it. we are thinking and praying it the thermostat and im going to order one and put it one but i cant find where its on the millenia so where is it?

Thanks

 

Verify is the fans are turning on