I have a 2006 dodge ram 3500 dually with a 48re. when i first got the truck it was shifting funny from 1st to 2nd. It would hesitate and wouldn't know what gear to stay in. I got it fixed by replacing the gove sensor or the slenoid transducer. Now it shifts funny from 3rd to 4th. It kinda feels like it is hesitating but it does it alot quicker and harder.

is there another transducer or gov sensor i should be replacing?

 

yes its got another one.but check the trans oil if dirty a flush might fix your problem.my truck had the same problem .

 

i was wondering the same thing too. i have been experiencing a weird shift from three to four. i have already replaced the gov. solenoid and sensor last year.

 

Is it ok to flush the tranny??? i have heard that it can be bad????

 

Nope, 3-4 shift is pure computer control based on the wheel speed, rpm, output shaft speed, and gov pressure readings. The only control in that circuit is the shift solenoid and they are usually solid, in or out.

A little better description on what you feel will help. Does it do it at all throttle positions? Does it do it in TH?

Is the OD shift happening then the lockup is kicking in and out?

 

it only does it at mid to high throttle.

it feels just like the 1/2 shutter shifting, only in 3/4 but it doesn't go back and forth.

i really don't know how to explain it. i'll just have to get someone to drive it