This Truck has been sitting for quite some time, also the Turn signals only work on sleeper when the running lights are on. I did replace the turn signal switch and tried installing a LED Flasher but it kicks out immediately.
The flashers will only work with non LED flasher unit
, also I noticed when the R/R Blinker is on I will see a Dim Flash in the L/R Blinker and this will go away when I pull the R/F blinker Bulb.
I have added a Ground to the Frame from the Battery and have cleaned the Frame to Cab Ground.