Hello,

I just wondered if anyone has any pointers as to why my Focus is acting weird. It seems to vibrate violently whilst driving, but only sometimes. The other day whilst reversing up a slight incline there wasa sort of sharp clicking noise at the front N/S. Iwas outside and saw the front wheel jerk. Today, my missus was driving it to work and it startied vibrating badly, so she stopped, put it in reverse, then back into Drive and it drove off normally.

I have pressed a new wheel bearing in the N/S hub. It has had new tyres on the front, new discs and pads as well. This car never gets cained, only driven gently. Does anyone think it might be the driveshafts C/V joints, or the actual gearbox? Although there is no noise from the gearbox and it goes through the gears nice and never slips out. There are also those solenoids in the box, but would they cause vibrations and a sharp snapping, I don't know.

This clicking noise is hard to explain, almost like teeth on a cog slipping, quite violent and does it at reversing up an incline at slow speed.

Cheers.