I have a 1997 dodge ram 1500 4x4 when the transmission gets warmed up about 5 miles down the road it seems to go into overdrive like or pop outs of 5th gear into 4th gear
I know the truck recently had a newer motor put in from a 1998 dodge ram. I
have already changed the fluid and filter and checked the fluid level when it
was warm checked the level twice it was good. I heard it may be a shift
solenoid but don't which one it would be. please help