Just figured this out!!! Truck was randomly dying while driving. Things I did: changed alternator, battery, negative and positive cables, fuse box on battery, also cleaned all grounds. Problem still wasn't fixed! Kept digging and what it ended up being was my Keys were to heavy on the ignition. When i would turn or pull up a hill, quickly accelerate or break. Keys would sway and trick my truck into shutting off. Cost me $700 to figure it out, but hell it's running great now. Hope this helps someone out. I was stressed to the max. Everyone kept telling me it was a computer problem. Glad I didn't listen. Good luck out there.