3rd Gen. Powertrain
I have an 06 5.9 3500 mega cab. Auto trans.
4x4 not working.
first 4low would not engage. Only blinking on dash. Then shortly after 4HI stoped working also.
I replaced actuator and still nothing.
I now have to shift 4x4 manually under truck. The actuator is removed now.
somtimes the dash...