steering wheel shimmy/wobble at hwy speed xc70

[darrylrobert]

Ever since i hit a dip in the road and bottomed out my front suspension, my steering wheel shimmies/wobbles at around 100km/h but not always, only when i hit a joint/bump in the road.

My first thought was a weight fell off my wheels, but i swapped the fronts for the rears and the problem is still there. Ive been really stressing out that ive damaged my alloys or tyres.

I also suspected the steering rack/inner outer tie rods so ive checked and replaced all that (used parts) but problem remains.

I had booked in to get the wheels balanced checked and steering aligned but a google search said a bad shock can cause this as it looks like ive damaged one or both shocks. I can see oil staining, so ive ordered new factory shocks from Volvo.

I will also recheck carefully the numerous other links and joints.

[jonesg]

Look at the control arm bushings too.

[oragex]

Don't forget to look at the tire on both sides of the wall, for any bubbling
As above, check the bushings in CA. For intermittent vibrations, I had problems with the axles. The slightest play in the CV joints or even just a small nick inside the joints can cause intermittent vibrations, depending on the road surface flateness. Maybe try replacing it with a used one that has not play in CV joints. While there, worth inspecting the ball joint or even replace it if it hit really hard