You could feel this when the motor revs up when in gear, though the motor vehicle will not speed up. Normally you have to have an excellent come to feel for your automobile to detect a slipping transmission. Rough idling is yet another widespread symptom of a bad torque converter. https://brooksxeebx.laowaiblog.com/33229272/5-simple-statements-about-torque-converter-clutch-explained