Something is loose/worn in the front suspension - Steering vibration

[Plutei]

Dad's Disco 4. Noticed a steering wheel vibration under braking and a slight knock over sharp bumps which have appeared after a desert trip.

The symptoms:
- Slight knock over sharp bumps, happens regardless if right or left wheel goes over the bump
- Steering vibrates under gentle braking only
- No vibration below 40km/h, I think it's worst around 60km/h.
- Vibration does not occur under hard braking
- The braking doesn't pull in any particular direction
- The braking itself isn't jolty and the fact that it doesn't vibrate under 40km/h, does that rule out disc/brake issues?
- Jacked the car up, no looseness at the front wheels so doesn't seem to be the bearings.

Will be taking it to a garage but if the brains trust has some tips that should make it easier.

[Ferret]

Probably front lower control arm bushes are shagged. How many ks on it?

[Tombie]

Lower arm by bushes are in need of replacing.

[LandyAndy]

Im awaiting a call from the dealer to book mine in to have the LCA bushes done.First noticed the clunk around 23000km,done 28000km now.they confirmed there was a problem at last weeks service.
Andrew

[Russrobe]

Jesus 28000k Andy? That's a worry.

[Tombie]

Jesus 28000k Andy? That's a worry.



Seen his driving?

Now THAT is a worry [emoji41]

[LandyAndy]

23000 when I noticed it:(:(:(:(:(
Will give you a call tomorrow.
I will catch up with olde Shiny head Aaron and call in to see you to put a face to a name on the way home if it works out.
Andrew

[LandyAndy]

Seen his driving?

Now THAT is a worry [emoji41]

BFG,if I had done heaps of off-roading and treating her rough I would have to agree.She is one of your bitchamin queens sofar:):):):):):)
Andrew

[Plutei]

Cheers chaps, sounds like a consensus.

55000km on it so far, mostly bitumen, probably around 6000km on dirt.

[LandyAndy]

Cheers chaps, sounds like a consensus.

55000km on it so far, mostly bitumen, probably around 6000km on dirt.

Put it in extended height and try it,speedhumps at the shops will make mine clunk.It doesnt in normal or lowered height.mine is a MY14,which is yours???
Andrew

[Ferret]

55000km on it

That's about how long mine lasted too.

[Plutei]

LandyAndy: MY12, and I haven't tried it in raised mode but it will do it in normal and lowered.

How much have others had it done for?
Just got a quote from Pacific Motors Pymble saying that he did it for a Disco 3 and found that it was going to be cheaper for the customer if he replaced the whole arms rather than cop the extra labour for extracting and installing the bushes. $1500 ($1100 parts), but don't recall whether that was both sides, just lower, or upper and lower.

Speaking of, can someone enlighten me on terminology for the Disco 4 suspension. As I understand it it's double wishbone suspension and the lower control arm is the lower wishbone, and the upper control arm is the upper wishbone? Or have I got it all wrong?