So I went to start my 2014 2500hd and it did not crank or start. There was power from the battery. The truck has 35k and I have an extended bumper to bumper warranty. I had the truck towed to the dealer that I purchased the truck from new. Two weeks later and a few thousands $$ they still have no idea what's wrong. They called me and asked if they should continue to try to fix because the warranty might not keep covering the labor. I told them it's a $65k truck they better know how to fix thier own product! I'm a little concerned, as I haven't heard back from them in a few days. I don't know what actions I have here. Anyone have any experience or guidence?