I'm getting some fairly bad vibration through the steering wheel when I hit 70, anyone got an idea what the most likely cause is ? It's not the wheel balancing, I've had that done at two different garages. Could it be track rod ends, control arm bushes, driveshafts, or something like that ?
If it's any use, I'm pretty sure earlier that it got worse when I backed off the accelerator as well, i.e. drove it with the foot down to 80 then let off the pedal and the vibrations started...
you must check each joint and bearing in turn, one or more will have excess play, under acceleration the wheel is pulling itself forward and cancelling any natural vibration that occurs. as you ease off the whell moves back to a neutral position and is able to vibrate using the excess play to shake about and show up at the steering wheel.
probably a joint rather than a bearing, but either is possible, could even be play in the shock absorber, depending on suspension design.
mrcheerful
Did you have the tracking done at the same time ? What car is it - could also be warped brake disks -As on my old Sierra.
Graham
Suppose I should have mentioned juddering on braking too.
Graham
No.
Wouldn't warped discs only contribute to vibration whilst braking... ?
See my second post above/below. Warped disks also gave me wheel wobble whilst driving. Had to get a hub puller to get them off - they'de nigh on welded themselves onto the hubs.
Graham
Hmm, didn't realise that. Why would that be then, feedback from the disc hitting the pads ? I'd have thought that the play in the pistons would have absorbed that.
The vibration doesn't show up under normal braking, so I'd assume this to not be the case for my car anyway.
Nobody's mentioned it yet, so I'll chip in even though Im not that great at this stuff!
My Mondeo had a very slight wobble right through the speed range, however it only came to being obvious when at 70-80MPH.
The problem was found to be a mis-shaped rear-nearside tyre. I jacked up the corners, spun the wheels and saw the tread wobbling left/right as the wheel spun. When swapped out the car is fine right up to Mach1.1.
Hope this helps?
Rv!
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