Three problems related to wiring have been reported for the 2005 Dodge Ram 2500. The most recently reported issues are listed below.
Truck quit after it was cranked up. Gages pegged out. Taken to dealer and narrowed down to the engine wiring harness from the fire wall to the engine is shorted out causing the pcm to short out as well. Wiring harness is discontinued and truck has been sitting at dealer for over a week. We have tried to locate one personally to no avail. Is this something that you can assist us with. We love our 2500 diesel and would like to have it repaired as opposed to buying another truck.
Just pulled on to exit ramp lost power and started missing, by the time reached stop sign at bottom pulled over shut off engine and restarted. Barely regained speed to 40 mph to limp to job site ran injector cleaned limped 25 miles into town to mechanic he replaced left back wiring harness said faulty design of plugs goiing to injectors.
Uncontrolled throttle (unintended increase in engine speed). While driving in cruise control, the truck stated going faster. Hitting the brake did not disengage but turning the cruise off did. A day letter, while driving in first gear, the engine went to 3500 rpm and would not return to idle. This happened twice and the only way to stop it was to push in the clutch and turn the key off. The truck was parked and went to the dealer where the pedal assembly (drive by wire) and the engine control module were replace plus work was done on the wiring harness due to having 12 volts where it shouldn't which presented issues with installing the engine control module. 100 miles later, the check engine light came on and there are codes indicating high voltage to various sensors. This truck has had electrical issues since day one and the problem is most likely related to the wiring. The engine control module has been replaced twice. I'm getting ready to have it dropped off at the dealership and expect the cpu will be replaced again.