Well, turned 50k and truck stalled, just went dead, no misfire, no smoke, just died while coasting. Fired right back up and ran fine. Have 05' with 5.4 3v. Took to Advance and these funky codes came up: P2104-TAC System Forced Idle and P2112- TAC system stuck closed. I know a Master Ford Tech that pulled everything he could and said basically my TB needs cleaning. He recommended the BG system saying it works wonders and IS NOT snake oil. Anybody else know anything about it. I don't know I can clean this myself, I don't have the patience for stuff I don't know much about, and TB cleaning is something I don't have experience with.