That is definately the most improper way to go about the diagnostic process i realize that it costs money to take it to a shop but you have already spent more than it may have cost to properly fix it. Your vehicle is so new even if you change evrything you may not make it start it does not have to ne a "failed" component"
You are are going to have to take the truck to an OBDII shop and have it diagnosed you have no chance of "hitting" it There are security system issues possible and you cannot go on another persons experiences same truck, same engine, same color everything same symptoms and it can be an entirely different problem. Stop now and take it to Dodge and be done with it Believe me unless you own an OBDII scan tool and have many years of diagnostic experiience you are likely not going to fix this one ,sorry anyway what are your symptoms? Exactly every detail