sxz:Pulinski:sxz: 2010 Ford Focus, Manual, 1.8L Turbo Diesel. 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...
I took my 2009 Ford Focus away to the Coromandel last weekend. I am experiencing the same issue, but in a Automatic. It was purchased from a dealer in August.
While driving around corners especially while accelerating (hills), I get a distinctive whirring and then a clunk. I would happen randomly but often about 10 minutes would pass before it would occur again. The sound did not affect the car at all. Once I got to the Hauraki Plains and State Highway 2, I did not hear it again.
Where did you take it to be looked at?
Fairview motors Hamilton - the Ford dealer. They took it for a drive (despite me telling them they wont be able to replicate it around town), looked in the engine somewhere (who knows where), plugged in the computer (whatever good that will do with a mechanical fault) and said the car was in perfect shape. They suggested I monitor it and bring it back if it happens again. Not sure how that helps if it only happens for 3-7 seconds at a time. Next stop will be a transmission specialist I think.
If there was an engine fault that was causing the engine to lose power then it would show up on the engine diagnostics.
But, despite the presumed lack of an engine fault, you feel that you are losing power.
That really sounds like a clutch problem. Especially as you wrote that you think that the engine revs increase when you get the problem.
You also write that the problem occurs on windy hill roads. Roads like that are the worst for clutch problems as you are putting high levels of torque through the clutch for long periods of time. Anything dodgy in any part of the clutch mechanism will turn up there.