First check your fluids. Radiator low? oil overfull? The 466's are known for liner pin holing, if the coolant hasn't been maintained. Second check your fan clutch,if it is a viscous drive, and it spins real easy with the engine off,it isn't moving any air. If it is a horton air operated clutch(don't know how the truck is spec'd)make sure it is engaging. If it is a Horton there should be a switch on the dash to override the temp sensor and make the fan lock up regardless of engine temp. The clutches wear out on the Hortons and don't engage, but there is a provision to lock it up manually with a bolt to get you home as a temp fix. Another thing could be the torque converter is weak and heating up the trans fluid,which in turn heats up the coolant.
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Today's Featured Article - On the Road with Dave Gohl: Deere Departed Friend - by Dave Gohl. Have you ever had to part with a dear friend? It's not easy. If it's due to death, your feelings could be in disarray for days, months or even years. Even now after almost 4 years, I still miss my dad. I remember when I was a kid my dad sometimes would tuck my brother and I in at night and we would ask him questions about his childhood on the farm. To this day, it's some of the best stories I've ever heard. And now, I'm so glad that I asked those questions, and if I were a little smarter i
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