Well, here it is the dealer installed my brand-new serpentine wrong. Under the idler pulley and not over it, so one month later, here we are with a broken serpentine. My problem is it currently sits outside, and unless they, which I doubt, come and tow it to the shop to fix their mistake, I need to get it indoors. Without a belt, though, I worry about what is all driven by the belt. The alternator, fan, a/c, and water pump, but I'm not sure what else. I've tried to find a layout of what pulley does, but I came up empty. Does anyone, by chance, have the diagram/ image that shows what each does? I've found some for the 6.0l and 7.3l but nothing for the 6.7l single alternator 2011 as it changed in 2012.