Discussion Starter · #1 ·
My 17’ 6.7 is deleted with all 5 proven diesel tunes, and 5” straight pipe. My issue is when driving down the highway in 6th gear and lay into the throttle to pass or speed up, when it downsides to 5th gear it jerks around as if it’s slipping in and out until I let off the throttle. Had it checked for codes and nothing comes up. Anyone else have any similar problems? Or know what is causing the issue?