I'm a DIY'er with past mechanic experience, way in the past. I'm wondering if anyone has seen this driveability problem. The hot trans is hunting, shifting between OD and kickdown speeds. Its fine when cold. It seems to be going out of gear when holding rpm and road speed with no load coasting. Under load on grades it pulls OK most of the time. I've replaced the Throttle Position Sensor. The Coolant Temp Sensor checks out. I haven't checked the Trans Speed Sensor because I don't know how. Looking at some troubleshooting guides I see maybe the filter is plugged, main control solenoids, and other things. Could it be a bad wiring connection, and where would that be? Ha! I haven't been under it much. I appreciate your help