SO like the title says the otherday I was hauling my gooseneck (about 10k lbs) and I had been driving for a few hours and at one stoplight (I had pulled off the hiway a few minutes earlier) I lok and my BlackMaxx is defueling because of high coolant temp but my stock gauge reads normal?? (a little less than straight up) I got out and checked under the hood and everything seemed fine. So I shut the truck off let it sit for about 2 minutes then restarted it and everything worked as it should. WTF? I was driving gently and I had the blackmaxx on "No Power" So then I changed my gauge readout to include my coolant temp and for the rest of the trip (about 1 hr) it never went above 213 and it was usually high 190's to low 200's. Outside temp was around 102f and I was in the hills. I figured if I had air in the system or a bad sensor (or if she was actually overheating) the stock gauge would read high as well. Any ideas? Thanks in advance.