Done some searches but cant seem to find my exact symptoms but heres the problem. Rebuilt tranny and new tc the trans down shifts fine but to make it upshift you need to let off the fuel then get right back on it in every gear. It will shift then repeat, when it shifts to od if you can get it to its hard to keep it from downshifting any suggestions would be great

 

Check the tranny fluid temp sender its in the output tube to the heat exchanger if you cannot find one since dodge has quit supplying them just put a 100 ohm resister instead of the sender