2005 LLY / Allison 4WD
Starts fine in Park, but will not shift out of Park when running.
Workaround of putting key in ACC and shifting to Neutral then starting works.
I'm assuming a neutral safety interlock switch?
I have a 2005 LLY/Allison with only 17k original miles. The truck has had a Diablo predator tuner on it at least half it's life. Last few yrs it's been ran on the 85HP tune. Last yr I was driving down the interstate and decided to romp on it and soon as I did it locked it's self in I think 3rd...