I haven't been driving the truck for a few days because of this issue . I just drove it to the parts store and when the transmission was cold it shifted 1-2-3-4 then 5 back to 4 . It did that a couple times then the 1-4 shift after that. We stopped at a stop sign then it would only stay in first. Saw my first check engine light (finally!!) Checked it with. The mini Maxx and it said p0700 transmission control system (mil request) I picked up the stuff to drain transmission fluid and change the filter. Was going to wait until I figure out this code to change so I don't have to do it twice. Any help is greatly appreciated. thanks
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