Thanks for the suggestions and support.
I assume that you have not got any further with your Alhambra frogtamer?
Our problem is getting worse, but still intermittent. Fortunately my wife just drives the car on local journey, but is now playing up on almost every hill now.
The car does not seem to slow down when the fault occurs (which I assume means that all cylinders are still firing) but is sluggish and unresponsive on the accelerator. The vibration is only on the floor of the car not on the steering wheel so I am sure its source is the engine rather than transmission.
It also completely disappears as soon as clutch is depressed.
I think it is possibly a fuel supply problem.
Hopefully I can give it a run at the weekend and then talk it through with our mechanic again. Or may be head for a diesel specialist as mentioned.
History
The problem started off last summer when we were driving in the Alps on some steep hills, a minor vibration which would disappear when you got more speed up or the road flattened out. Not conscious of the problem for rest of holiday but then it came back on the long motorway drive back home, and was quite severe.
Took it to our mechanic a couple of days later but absolutely no sign of a problem, so we forgot about it.
My wife took it loaded on a long journey and the problem came back in a severe way, so she called our roadside recovery. They thought it was the dual mass flywheel, but our mechanic said that this would not be an intermittent fault. Our mechanic replaced a worn drive shaft and roll bars, and had no more problems for months, but then again did not do many long journeys or fully loaded trips.
Edited by andy-seat on 07/02/2011 at 14:05
|