2009 Ram MDS issues. Can the transmission controller be set to require more power to kick out of overdrive? At present, it kicks out of O/D on every hill or overpass at highway speeds. Also, the Fuel Saver works great up to 40 mph. After 60 mph it is almost impossible to keep in Fuel Saver on flat level road. At 70 you have to be going down hill, and take foot off gas to activate Fuel Saver. Slightest touch on accelerator kicks it back off.

 

Welcome to the site. You can buy chips or a Diablo tuner that will retard the MDS or you can swap the lifters out for non-MDS lifters (expensive). The guys in the Ram section may know more,
FF

 

welcome to D.FORUM.