Originally Posted by Mudrakle
Your truck still working good so far? I figure that I would chime in that I just got the 4th gear limp mode happen this morning on the way home from work. I got home and shut off the truck and then restarted it. It threw a check engine light. I don't have a reader so I don't know what the code is yet. I bought an extended warranty for my truck but now can't find the paperwork!!! I have to wait till tomorrow to call the place I bought it from and hope they can help me out! Its a 2010 Ram 1500 4.7L and it has 53,000 miles on her. I literally just got the oil changed on her on Friday and today is Sunday!
Was that the transmission
oil (and filters) you just got changed, by any chance? If so, I would suspect a misinstalled filter. If not, likely an electrical fault of some kind. Get the code(s) and that will tell us where to start looking...
By the way, most parts stores will read your PCM fault codes for free. Your truck has a PCM (combined engine and trans controller), so the trans faults should show up there.