I have a 1992 dodge dakota le, 3.9 auto 99k miles. When i am going 55,60,65 and the truck is in overdrive when i start down any kind of grade, if i let completely off the gas it will down shift out of over drive, if i hold the gas down just a little it will stay in overdrive. when it downshifts and i try to get it back into od it takes a few seconds to go back into od, im having some problem with it shifting in and out between 25 and 45 ,. I pull a 45 code but im sure that most of you know that under that code there is 10 things. one other thing that happens i can push the button to take it out of od but it wont do anything now. any help you fellas can give would be greatly appreciated.

 

Moved to the correct technical section.

 

Are you sure it is coming out of OD or could it be the converter is unlocking.

 

thats a good question i need to think about that thanks

 

sorry didnt know it was in the wrong section

 

I agree with this.

Take the truck out on a long stretch of road. Accelerate about half throttle. Count the shifts. You should feel 1-2 2-3 3-4 and then 4 TC lockup. 4 "shifts" should be felt. And you'll notice the tach (if so equipped) will drop about 4-600 rpms and feel the engine bog down a little.

Or, going up a hill, if you feel 2 "downshifts" and you'll still going over say 40, you're in third not second.