2010 RRS front end shuddering problem

[SteveM46]

All

I have an early 2010 Range Rover Sport with 25,000 miles on the clock. I was driving up the motorway on Sunday in driving snow, and as I nudged up towards 70 mph I was getting very violent shaking at the front end and through the steering wheel, the sort of thing you would normally associated with a tracking/wheel alignment problem, except it came on suddenly and I had not experienced it before.

After speeding up and slowing down a few times I decided I couldn't complete my 200 mile journey so went off at the next junction and headed in the opposite direction. Very strangely, I found that as I speeded up again the problem had gone away.

Can anyone think what was going on here? I'm not very mechanical, but I'm struggling with the fact that there was a very distinct problem but which vanished completely after slowing down, going round a roundabout and then heading off in the opposite direction. Could it be a gearbox problem? Could the snow have had anything to do with it?

I would welcome any ideas.

Thanks

Steve

[bakerstreet]

wheel balancing? Uneven tyre wear?

Worth taking to a local wheel tyre specialists so they can check the wheels over.

[SteveM46]

If the problem had persisted I would be inclined to agree. The fact that it went away completely, and has been fine since, leads me to wonder...

[NomduJour]

Had frozen mud do something very similar.

[mattdaniels]

Stone or mud in the caliper.

[SteveM46]

Thanks both, I did wonder if it might be snow. It was coming down pretty hard, but it was also quite slushy and was sticking under the windscreen wiper and 'lifting' it up so the contact area was impacted. If the same sort of thing was going on at the wheels, then I can see that slowing right down and moving the wheels around (braking and going round a couple of corners) might have shifted it.

I will assume that was the case unless/until it happens again.