WrathX
Junior Member
Hello. This is for my 2011 Ram 1500 4.7l with 545RFE transmission. I've been searching all over trying to figure this out. Around Christmas time I started to have issues where my truck would want to quit when coming to a stop. I'd have to throw it in neutral every time or else it would quit. After some research I first tried changing the transmission pressure sensor. Didn't do the trick. After more research things pointed to the shift solenoid. Took me a bit to figure out exactly which one I needed to replace (grey plug vs white plug type thing). I got that figured out and ordered the solenoid. When I went to change the solenoid, I had to back into my garage through a drift of snow. Didn't think much of it as the truck had been running decent besides the quitting at a stop. Just as I was about to back all the way in the garage, the truck suddenly wouldn't go forward or reverse. Nothing, like it was in neutral. I changed the shift solenoid, filters and oil, put everything back together, and still no forward or reverse. Took the pan off again and realized I hadn't installed the new pan filter properly and I think the old filter wasn't completely installed correctly either. The neck wasn't all the way into the O-ring. Fixed that, put everything back together and voila! Everything worked! No codes, nothing! That was two weeks ago. The truck has been working excellent since then, shifting better than it has in a long time. A couple of days ago, on my way to work I noticed the CEL was on. Checked the code and there was P0934 (Hydraulic Pressure Sensor Circuit Low) and P2704. By the time I got home that night, the light was off. Then yesterday, I got home from work went inside for a few minutes and came back out to leave. NO REVERSE at all, just revs up. No CEL either. It kind of feels like it tries to do something, like a slight nudge when you put it in R but does nothing. RPMs barely change too. Forward works completely fine. Went for a drive, shifts great, no issues going forward. Still nothing in reverse. Very frustrating. I'm hoping someone has some ideas. Thanks in advance.