Hello folks, I am wondering if I can please call on your collective experiences?
Yesterday morning my P38 (Diesel Auto) suddenly developed a vibration that starts at 20mph and then fades out above 30mph, coming back more subdued at 70mph with a feel very similar to when you drive over the rumble strips on the edges of a motorway.
The vibration at 20-30mph is quite pronounced and is felt through the floor and pedals. It is felt as a general vibration through the steering wheel as opposed to any direct forces being felt through the steering.
There were no preceeding warnings, I haven't hit anything as far as I am aware and I have not noticed any unusual noises (over the clatter of the diesel engine :) ).
I have accelerated hard from standstill to load everything up with no vibration issues or unusual behaviour until I reach the 20-30mph bracket.
I have yet to try locking it in gear and driving through to see if the gearing has any bearing on it.
I have had the front wheels off and rebalanced today with no improvement.
Whilst the wheels were off I checked over the front axle but found nothing amiss.
All four front ball joints were replaced with quality new items last year.
It has had good quality new tyres and brake discs in the past six months.
The nearside wheel bearing assy. was replaced about a month ago.
I have had an initial check of the prop-shafts and cannot feel any play in the U/Js. I will try lubricating them when I get chance, assuming that there are grease nipples (off to check RAVE again straight after this).
Has anyone experienced similar? The internet suggests that it is more common to have vibration issues at higher speeds.
Any help or pointers greatfully recieved.