2000 Prix, 3.8L, 4T65E. No overdrive but I can feel something happening around the time it should kick in. The only CEL is for MAP. There was some sort of torque convertor lock failure code in the history but I haven't seen it pop up anymore and I know this engine and maybe the transmission were swapped 2 owners ago so that problem may not be a problem anymore. When we hooked up one of those SnapOn scanners and drove the car we did not get any CELs or errors other than MAP, everything appeared to be working fine. I'm guessing that 4th gear spline is whooped.
I have plenty of tools, been working on Hondas for over 10 years. What would I be getting myself in to with an OD repair on this car?