There is an audible click from the dash of the truck then the tack and speedo will drop to zero and no power as if the truck has been turned off? then it goes back to normal (at highway speeds). Also when shifting from park to drive the truck will not go and the DCI will say shift to neutral to reset? These issues don't happen all the time however they are becoming more frequent. 200k miles well maintained truck. Used to pull horse trailer. Took to local dealership[ and they could not find the problem, however they did find and repair what they thought was a loose ground wire. Any suggestions?
