I have owned this car for 8 months. Lately I have noticed a problem, which the Ford Dealer cannot find or diagnose. They gave the car a clean bill of health.
The problem: Every now and then there is a clunking, or grinding somewhere in the powertrain. As I am driving along it clunks, whirs, grinds, the car loses power, I then usually lift off the throttle or engage the clutch, and something seems to pop back in, then the car is fine again. This happens very rarely, usually only on long trips.
We've slowly narrowed it down and it seems to only happen on windy hills. It doesn't happen seem to happen in town or on long straight roads. The clutch and gearbox both feel fine to me as all other times, so to me, it seems like the problem only happens when the diff is under pressure.
Has anyone else had any experience with this? Because the local Ford dealer hasn't...