Specifically looking for from the engine block heater/fuel heater plug in. Plug in to block heater. Where exactly does it connect to the fuel heater ? When looking from the plug in it looks like it goes over to the fuel separator but can’t find it. Have had another person wiggling wiring to find it and cant.
2018 579 Peterbilt Wiring Diagram
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Brandon0928, Nov 30, 2022.