Disco 2 Unknown Knocking

Shimsteriom · Sep 17, 2017

So, after replacing the bushes on the front and rear radius arms, arb, and the watts linkage, I was hoping that the annoying knocking would go away, but it hasn't!
I've been underneath and given stuff a kick and push, but there's nothing obviously loose, broken or worn, so has anyone else has a similar issue? It's a metal on metal sound rather than a thump or thud, and more frustratingly, it's really hard to determine whether it's the front, back or middle of the car, but if I had to pick any of them, I'd go for the middle / rear.

Colthebrummie · Sep 18, 2017

It's not the exhaust knocking on something is it?

Col

jamesmartin · Sep 18, 2017

Shimsteriom said:
So, after replacing the bushes on the front and rear radius arms, arb, and the watts linkage, I was hoping that the annoying knocking would go away, but it hasn't!
I've been underneath and given stuff a kick and push, but there's nothing obviously loose, broken or worn, so has anyone else has a similar issue? It's a metal on metal sound rather than a thump or thud, and more frustratingly, it's really hard to determine whether it's the front, back or middle of the car, but if I had to pick any of them, I'd go for the middle / rear.

get someone to rock car vigorously whilst you check , a hand on each part in turn helps

Shimsteriom · Sep 18, 2017

Colthebrummie said:
It's not the exhaust knocking on something is it?

Col

Nah, that was one of the first things I kicked

davidsmith1307 · Sep 18, 2017

Have you tried going around underneath and giving everything a good whack. You can often rule things in or out as they won't sound like the knock you hear.

ozzyboydeano · Sep 18, 2017

shockie bush ? sway bar links ? exhaust hitting due to bad engine mounts or an exhaust mount
some times you need the weight off to test curtain components

MJI · Sep 18, 2017

How do you trigger it?

Shimsteriom · Sep 18, 2017

MJI said:
How do you trigger it?

Seems to be when hitting speedbumps or potholes too quickly. Even 15-20mph can cause the knocking.

Shimsteriom · Sep 18, 2017

ozzyboydeano said:
shockie bush ? sway bar links ? exhaust hitting due to bad engine mounts or an exhaust mount
some times you need the weight off to test curtain components

All the new shocks had new bushes fitted when they were replaced, however, the arb droplinks have never been renewed during my ownership, so I'm thinking of getting them replaced anyway.

MJI · Sep 18, 2017

Shimsteriom said:
Seems to be when hitting speedbumps or potholes too quickly.

Not cornering?

If it was as well, drop links.

When speedbump hit, was it front or back?

Shimsteriom · Sep 18, 2017

MJI said:
Not cornering?

If it was as well, drop links.

When speedbump hit, was it front or back?

No, not when cornering.. even at 50ish, there's no kncoking. It just seems to be when something is hit, or the wheels drop in to a hole. I think it's coming from the back, but it's quite difficult to tell.

doodle bug · Sep 18, 2017

Might be a seagull called Steven jammed underneath ?

MUDCANIC · Sep 20, 2017

Try you're rear antiroll bar ace drop link drivers side.grab hold of main bar.up and down.hard.mine wentknocking more when driving slow.

Shimsteriom · Jan 2, 2018

So, finally replaced the ARB droplinks, front and rear, and the knocking has stopped!

Disco 2 Unknown Knocking

Shimsteriom

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Colthebrummie

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jamesmartin

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Shimsteriom

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davidsmith1307

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ozzyboydeano

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MJI

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Shimsteriom

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Shimsteriom

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MJI

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Shimsteriom

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doodle bug

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MUDCANIC

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Shimsteriom

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