Medium and Heavy Trucks
Have Truck Repair Questions? Ask an Expert
good morning my name is ***** ***** I will assist
it sounds like you have a wiring harness issue somewhere. if you remove the left rear light, will the markers work with the headlights.
I see you viewed my answer, are we going to continue???
you have a harness issue as I stated before. you are going to need to examine the harness especially at the rear for any damage or shorts. without me being there, it is impossible for me to pin point the exact failure.
most of the harness failures revolve around the rear of the truck
please dont forget to rate me as it is the only way I get paid for my efforts
common grounds at rear of the truck.
black box filter???