At the back of the transmision you have a block with four bolts a sensor on top with 4 screws holding it in and a air pressure filter thing a ma jig. My truck did the same ####. After I turned it off it would shift like crazy. Well the stiff I'm talking about is your high low selector stuff inside behind the four bolts I a air operated piston that move your gear back and forth for high low. Mine was stuck in between and my seal kit was #### filter part was bad to an the electric part was corded iinside. Put new and and she shifts like new now. Sorry fat fingers amd I don't have time to go back. Good luck. Bet it fixes it.
autoshift will not go into any gears no error code, just flashes
Discussion in 'Trucks [ Eighteen Wheelers ]' started by TowHaul, Oct 17, 2017.
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