E4od transmission is hard shifting all gears

Good morning,

Did the hard shifting start after this repair?

https://www.2carpros.com/articles/automatic-transmission-problems

How long since you changed the fluid and filter in the transmission?

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Roy

Okay, did you verify the connections to all those modules? This is controlled electronically.

Can you post some pictures of where you were working?

Roy

The transmission consists of a converter clutch, six multiple disc friction clutches, one band, two sprag one way clutches, and a roller one way clutch.

OPERATION
The torque converter couples the engine to the transmission gear set. The input shaft transfers power into the transmission gear set. The power input is controlled by the application of the converter clutch, which is controlled by the Electronic Engine Control-IV(EEC-IV) system on gasoline engines or the transmission control system on diesel engine models. These controls, in conjunction with a hydraulic valve in the pump body, operate a piston plate clutch in the converter. The application of the piston plate effectively replaces the hydraulic coupling between the converter cover and the turbine with a mechanical coupling between the converter cover and the turbine hub. This mechanical coupling helps improve fuel economy and wide-open throttle performance by eliminating converter slip. Transmission shift selection in the Overdrive range and converter clutch operation are controlled by the Power-train Control Module (PCM) on gasoline engine models or the transmission Electronic Control Assembly (ECA) on diesel engine models. They are calibrated to determine the optimum transmission state.