so i finally got my 4.10's installed and took the car off the jack stands for the first time in a month. i thought i would start it to see how the electric fan setup works. i filled the radiator with fluid. it only took about half of a gallon? and i thought maybe i need to fill the coolent passages. i start it up and turn the heat on. the electric fan never turns on. i turned the car off when the heat got up to above normal. i take a lighter to test the fan and heat the probe. it turns on. so then i am wondering. i take the rad cap off with a rag and its boiling so i put it back on. i touch the radiator and its as cool as can be. it doesnt seem like water is flowing. does this sound like maybe i installed the t-stat in the wrong way?