I have a 1991 Dodge 3/4 ton with a Cummins it has a automatic overdrive transmission. The transmission has started shifting out of overdrive when I let off the gas. it doesn't matter what speed i'm going. If anyone has any ideas at what would cause this I would appreciate your info. Thanks

 

I'm wondering if there isn't a cable that needs to be adjusted.

 

Thanks, I think i figured it out there is a kickdown band i can adjust. It is on the side of the transmission.

 

Also might want to adjust your TPS. They seem to get out of wack...

Here is the kick-down adjustment
Denis Hruza - Dodge CTD - Throttle Lever Adjustment (Kickdown)

And here is teh TPS adjustment
https://www.dieselbombers.com/1st-ge...ensor-tps.html

 

Thanks alot that is a huge help!