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2015 Silverado 1500 High Country Crank, No start


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Hey y'all, having issues with my 2015 Silverado. Towards the end of a 300+ mile road trip my truck's engine shut off while stopped at the turnoff of an exit. I restarted it drove to a gas station and then started it again to go home with no more issues. In the morning I had a hard start then drove to my job site and while I was waiting to go in parked in my parking spot the engine shut off again so I restarted it again. It ran about 5 minutes then shut off again. When i went to restart it my check engine light popped on, dash reads reduced engine power, and it will crank not start. I popped on my code reader and I am showing   three codes p1682, p0650, and p062b. I have 113k miles. Does anyone have any ideas????

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First....

 

 

Welcome! Lots of good info on this site for you.

 

 

 

Not even sure I'm on the right track here...


But in what condition is your battery? I know depending where you live seasons are changing and all of those codes seem to point to voltage/power issues ( from the searching I did quickly ). I've been told and seen many forums on here about how wacky these trucks get when the battery gets low.

 

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I just dropped a brand new battery in it a two days before this happened. I live in SC so the weather is pretty mild right now, low around 34-40 every night. I swapped it my ignition switch yesterday because they're cheap and at least I could rule that out. All my fuses are good and I swapped my fuel pump relay and had the same issues. Idk what to do now. It might actually be the fuel pump.

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Wife's CTS acted like that, the fuel pump was going out. I forget what pressure it was supposed to produce but it was way higher than I'd have ever thought... something like 2000+ psi

Sent from my SM-N975U using Tapatalk

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