I am running a 2001 Ram 2500 5.9 Diesel backed with a 47RE Trans with 234K on the dash. I been having shifting issues and been reading tons on threads on here about the same issue. I changed the gov pressure sensor and seleniod and filter, alternator, and even tried the isolating the neg batt grounding wire away from alternator. I reset the tps by pressing the pedal down and up before starting truck. That clears the issue up for about 50 miles then it shifts all over the tach. Especially between 2nd and 3rd. I tightened the bands also...I am at my wits end does anyone else have a solution or point of interest to look at next that might have happened to them before??

 

Check connections at the trans, and PCM.

What brand parts did you install?

 

I will check those connections for tightness and corrosion and clean terminals with electronic parts cleaner...I used parts from Cascade Transmission

 

This Youtube video saved me a lot of money on my transmission.

 

I watched the video and those are the two sensors I alreadt replaced from Cascade Transmission parts.