I have a 04 dodge 5.9 cummins and when I am driving, it has takes forever for it to shift into 2nd (25 mph) and 3rd at (45 (mph) I took it to the dealer and they couldn't find any codes or anything. I even had the 2 senors inside the transmission replaced thing that was the problem but nothing has seemed to worked so far. I currently have 97000 miles and truck has had little problems, until this started approx. 4000 miles again. This problem doesn't happen all the time. When the mechanic and myself went for a ride with the code reader hooked up (no codes) it wouldn't do it. (it did it all the way to the dealership) We drive for about 5 miles I pulled over into a parking lot and backed up for about 20 feet, then put it into drive and presto it started happening again. Like I said this doesn't happen all the time. Now the dealer wants to throw parts at it. Can anyone help?

 

The kick doiwn cable down by the tranny or TV cable left front side of engine needs adjustment. IMO get someone who know trans to do it.