Hey Guys (& Gals), brand new to this site. This is my 4th Duramax and have always had good luck with them.
This one is a 2015 GMC 1 ton 4x4 Crew Cab Denali - Black on black. at 11,500 have had some goofy issues but have 2 items I really want to get corrected.
It won't go past 94(95 once)...