2010 Dodge Ram 1500 5.7 rpm jump
Ok. I'm having the same problem with my 2010 Dodge Ram 1500 5.7 545rfe. I did try changing my transmission fluid and filters. I also changed the air filter with a cold air intake. It finally popped a code P0740 which is a generic code for the the torque converter circuit. I took it to RPM automotive and checked to see if the SB 18-011-12 (software update) was installed. It was. Since the code was with the transmission they said the only thing they could do is change the tranny. I decided to drop off my baby at AAMCO today 02/25/2016. I will follow up with the final diagnosis and fix.
Also, I have seen people talking about grounding the TB. Being an Aircraft mechanic and working on vehicles for half my life I shook my head at this, but I did try it to see what would happen. I used a braided 14Gauge wire. Used the fwd left mounting bolt and the body ground. Didn't see much of anything. I will give it another shot later, and post what I noticed.