Scotty, I have a 2015 silverado1500.Refused to start one day. After checking it mechanic said it's the fuel pump. Got it changed. After changing it the truck would shake, jerk and kick till it gets to 50mph. Took it back to him 2 weeks later, he said we need to a tune up. Changed the spark plugs and the spark plug wires. Same problem still there. I don't plan on going back to the same mechanic and still don't know what to do. By the way there is no check engine light. It used to flash for a few seconds every now and then before I change the fuel pump. But now no check-engine light. Truck has 257K miles on it, mostly Highway miles. I bought it last year with 85k miles. And I had a transmission rebuilt 2 months after I bought it.