If you're hearing audible knock under light load I would start by doing an induction service on the vehicle to get it de-carboned. Might want to try...
My issue revolves around a reoccurring fault code P1665 that is tied to the use of the operating system 12212156 that is running the 5.7 Vortec V8 in...
Original plan was to go supercharger, but im going a different route. Also wanted something that pulled good to 6400ish rpms. And i live in florida,...