Peterbilt Level 1 Engine Derate
2018 389 peterbilt in derate mode (vlog #12) Kenworth dash warning lights Kenworth t680 dash warning tech
2003 Peterbilt 379 - Part 7 - Prepping for Engine Removal - Part 1
2018 389 peterbilt in derate mode (vlog #12) Kenworth dash warning lights Kenworth t680 dash warning tech