My wife’s XT6 had a horrible shuddering problem. The dealer ended up replacing the torque converter and all of the valves in the 9T50. I assume that the torque converter died and sent crud through the valves. I never really paid attention to the temps before the repairs, but now it seems to run between 210 and 220 when cruising on the highway and in stop and go traffic. I’m concerned that some of the crud is also blocking the lines going to the radiator transmission cooler, or the cooler itself. There are no codes when I scan it, but I’m not sure if there would be? I’m trying to decide if it needs to go back to the dealer…