I have a 2013 Duramax with 130k miles. We’re in the middle of a 6k mile trip pulling 15.5klb 5er and I’ve started to get a turbocharger engine code (P2599). This first happened 3000 miles ago when...
If your oil is low enough (approx 2 qts), add 2 qts of Hot Shot Secret Stiction Eliminator. 60 bucks or so and $$ back guarantee. Worth a shot and a lot cheaper than a new turbo.