Thread: new noise/vibration MY12 D4

If you're sure it's not tyres how about - a stone somewhere, wheel bearings, tie rod ends or similar kinds of things ?

Originally Posted by Epic pooh

If you're sure it's not tyres how about - a stone somewhere, wheel bearings, tie rod ends or similar kinds of things ?

Nothing obvious on quick inspection, but is the reason I asked other D4 owners if they had similar symptoms.

If it were tie rod ends, you'd expect loose steering and it to be present at all speeds, stone a possibility, but you would expect to hear the stone at slow speed or once again at all speeds/conditions.

Mine often gets a build-up of dirt and gravel on top of the gearbox tray that eventually half-burries the exhaust pipes but I wouldn't describe the noise as metalic, more just a noisy vibration that can change between on and off throttle possibly due to the twist of the engine and gearbox in their mounts. Mostly heard at idle anyway.

Originally Posted by Graeme

Mine often gets a build-up of dirt and gravel on top of the gearbox tray that eventually half-burries the exhaust pipes but I wouldn't describe the noise as metalic, more just a noisy vibration that can change between on and off throttle possibly due to the twist of the engine and gearbox is their mounts. Mostly heard at idle anyway.

Yes, I had that over Christmas after a lot of sand driving. I would describe that as a rattle but it is a vibration transmitted to the body from the exhaust pipe through the sand in my case. I was worried at first until I got underneath and found out what was going on. Easily fixed by washing the sand out.

Bob

Mine is at approx 40km/h under light throttle. I'd call it a hum type vibration. I know its not tyres cause I went from scorpions to D697 with an identical noise. I guess both of those are AT tyres but D697 are more aggressive and have more general hum during tramac road conditions.

I don't think it is cabin based and am sure it is a column drivers side source. Having a brother in law that is particular about rattle etc as me, tracking rattles to their source with one of us moving seats ending in the car boot! I know only too well how deceptive these things can be.

Now if only there was a straight road I could use to look in the engine bay while driving...

Originally Posted by jammers

Mine is at approx 40km/h under light throttle. I'd call it a hum type vibration. I know its not tyres cause I went from scorpions to D697 with an identical noise. I guess both of those are AT tyres but D697 are more aggressive and have more general hum during tramac road conditions.

I don't think it is cabin based and am sure it is a column drivers side source. Having a brother in law that is particular about rattle etc as me, tracking rattles to their source with one of us moving seats ending in the car boot! I know only too well how deceptive these things can be.

Now if only there was a straight road I could use to look in the engine bay while driving...

You could try the Robert De Nero technique he used in Cape Fear..... Just hang from the chassis rails... Just make sure Off Road height is selected and preferably with GOE rods or llams.
Paul

Originally Posted by Lotz-A-Landies

Driving back from the coast this weekend I noticed a new noise/vibration. It seems to be coming through the steering column. Only comes in around 90KPH on the overrun or at constant speed on the flat.

Its not like unbalanced wheels or a steering wobble, just like metal on metal vibrations at a reasonably fast frequency.

Any ideas?

Not sure if this thread has come to a close but I seem to experience a similar issue - not that I have an answer - but seems to not be a single case at least.

I am still on the OEM wranglers. I get the vibration from around 80KPH and above - there is also a constant minimal vibration in the steering. A shimmy has accompanied me from early days (Late 2011, MY12, SDV6 - now 40k) - many wheel balancing acts later, one help (which I got from another member on this forum) is to constantly and perfectly keeping the tyre pressure as per LR (33/36 psi) - it doesn't completely address it but helps. You can see me at the air-station every Saturday morning - great start to the weekend!