Problems With 2024 Duramax. First time service emissions triggered was around 1200 miles and then the permanent check engine code came on that indicated power will be. General motors has initiated a service update for the 2024 gmc sierra hd, addressing an issue with the 6.6l v8 l5p turbodiesel duramax engine.
Purchased a 2024 gmc denali ultimate about a month ago. Some issues have been reported with 2024 trucks, some low mile strange problems for sure, but considering the number of trucks produced probably not a big deal.