started with 2nd to 3rd gear and has become more common in 3 to 4 and 4 to 6 gear changes.
Felt like a hard miss at 30-40 mph; could have been engine or transmission. Had it hooked up to read codes...."TCC".. torque converter clutch..ouch..this is gonna be expensive, but check engine light never came on.
check engine light on due to faulty torque converter
TCC open and check engine light on. Dealer says only solution re and re TC and gaskets and such