I have come here a couple time and you all have been able to solve my problem almost immediately, so, I am here again.
I am a complete novice at engine repair (as a heads up)
I was driving one day out about 40 mph and the truck suddenly lost all power. The alternator is pretty new, replaced about 1.5 years ago. The battery has also been checked and it is good. I had someone tell me that it could either be a spark plug or the fuel pump.
Any other ideas or help on this would be appreciated! If you need pictures, let me know and ill post them on here!
Thanks again everyone!