I'm just wondering what is a normal amount of time it would take for the thermostat to open up and fans to kick on running at idle speed. It seems since I got all the air out of my system its taking a very long time for mine to get up to tempature. I'm talking like 15, 20 minutes maybe more... By that time it gets insanely hot and frankly is scary. I know there are a lot of piping that the coolant needs to travel through but it just doesn't seem right to me? Anyone have any feedback?