My Disco4 TDV6 is vibrating when accelerating as though it is failing to select a lower gear to get power. This happens at any speed, like when I am driving at 100kmh or more and start even a little incline. It will vibrate but when I shift manually to sport it seems to stop.
My mechanic put his machine and the fault shown was lambda sensors. Could it really be these sensors that are the culprit?