Recently purchased a K3500 with the 454, it was starting fine for awhile, then out of nowhere wouldn't start. After sitting for a few hours, or a day, it starts, and will keep running, and will start again the rest of the day. But doesn't start in the morning, and sometimes not at all throughout the day. I replaced the MAF, EGR, TPS, Starter, Battery, and the Directional Switch recently as most of these were giving codes, or broken, I know after working on it the side running lights I have on it popped fuses. But the no start happened before I did that. Is there anything I can do before I go throwing more money into something that could be cheap and simple?