Just started having this issue with my Ram where I'll be cruising at highway speed, lean on the gas just a bit to maintain speed on a hill and it will momentarily rev up like it kicked out of overdrive, then immediately back down, and will keep doing this till I ease off of the gas. My first thought was just that, that something was wrong with the overdrive or maybe a solenoid. Mentioned it to a mechanic buddy and he suggested that it could be the TPS, does this sound right to you guys? Or any other ideas?
Thanks