21 Powerboost XLT FX4. 103k miles. I’ve had a shudder since 96k miles. It happens at about 30% throttle, especially if I’m towing, but my PIDs all look normal before, during, and after the shudder. Started in 3rd, but now happens in 3,4,5 when accelerating at about 30% throttle. If I give it...