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Vehicle is Boxer 290M 2.0 HDi - only 27,000 miles owned by us from new. No accidents or bumps.
When we pull off and accelerate there is a judder as if a driveshaft is bent or wheels buckled...it only happens when accelerating even worse when we accelerate up a hill. Usually pulling at approx 40 mph. All wheels have been balanced and checked - they are not buckled.
So far 3 machanics think it is possibly the driveshaft and/or clutch, but they can't be sure and it will be very expensive to proceed on this basis. Any ideas?
Vehicle is Boxer 290M 2.0 HDi - only 27,000 miles owned by us from new. No accidents or bumps.
When we pull off and accelerate there is a judder as if a driveshaft is bent or wheels buckled...it only happens when accelerating even worse when we accelerate up a hill. Usually pulling at approx 40 mph. All wheels have been balanced and checked - they are not buckled.
So far 3 machanics think it is possibly the driveshaft and/or clutch, but they can't be sure and it will be very expensive to proceed on this basis. Any ideas?
Thanks
Hilary
Five questions:
1. Is there any extra external noise when you pull away?
2. How do you feel the judder? Is it through the Steering, suspension or clutch pedal?
3. If you increase revs is the judder less or more?
4. Is there any judder in reverse?
5. Is the judder there as the clutch is engaging or once it is fully engaged?
The answers here may give some clues. BTW, this is nothing to do with the reported judder on later X250 models.
Gerry
It may be the engine or gearbox mountings ar loose. If they are the van will judder as the diff box in the gearbox tried to find a balance. Which is hard as the driveshafts are different lengths.
You can try the shafs by just grabbing then and pulling side to side etc to see of there is any play. A small amount is ok but you shouldnt have lots of slop
ps you have checked the wheel nuts...havent you?
Phill
______________________________________________________________ Just when i found out my dad was right I had a son that thought I was wrong.....Henry winkler.
May be a wheel bearing. Its difficult with a large wheel, but can you jack up the wheel clear of the ground and try moving the wheel top to bottom any play indicates wheel bearing.
OK, well we have definitely ruled out clutch and gearbox. That it is speed related should make it easier to identify.
You are now describing it as wobble, how old are the tyres? It is common for low use tyres for the carcase to develop a twist or flat spot. This is quite difficult to see, but If you change the wheels from front to back does the wobble move with them?
It's a long shot, but do you have anyone with identical wheels that you can swap with to test? Easy with mass-produced cars, but a 3500kg van is a different proposition.
A further option is shock absorber.
Gerry
Thanks, Gerry, front tyres are new. problem existed before tyres were replaced. Front wheels with new tyres were moved to rear and wobble still existed on Front of van. It is hard to describe, but it's more of a wobble than a vibration.
On what grounds do you think clutch and gear box ruled out/
Thanks, Gerry, front tyres are new. problem existed before tyres were replaced. Front wheels with new tyres were moved to rear and wobble still existed on Front of van. It is hard to describe, but it's more of a wobble than a vibration.
On what grounds do you think clutch and gear box ruled out/
Thanks
Hilary
Hilary,
Clutch is ruled out because if it was the clutch then you would feel it more as the clutch engages and disengages. Once the clutch is fully engaged then there is no longer a physical clutch
Discounted the gearbox as it is felt at the wheels and not in the centre of the vehicle. Also it is speed related and a gearbox gearing issue would show at all speeds.
Gerry
Have been back to mechanic. He says best way to describe problem is
'only happpens when - throttle on - diff under load - happens at about 35 mph and it stops when you reach about 40 mph'
Doesn't happen in reverse - no extra noise heard outside vehicle.
Any more ideas gratefully received.
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