I generally endorse you eliminate the torque converter within the transmission to diagnose it appropriately. Slippage consumes electric power throughout the coupling period. Locking the converter shell into the turbine shaft prevents this slippage from happening. Great automatic transmissions really should shift so easily that the driving force barely notices. https://torque-converter-clutch42963.thezenweb.com/the-basic-principles-of-torque-converter-clutch-72019684