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        General >> Problems >> knocking when going over bumpy surface
        
(Message started by: standarren on Nov 5^th, 2006, 9:06am)

Title: knocking when going over bumpy surface
Post by standarren on Nov 5^th, 2006, 9:06am

i've noticed a nocking when i'm going over a bumpy surface coming from the front end any one have this before help appreiciated

Title: Re: knocking when going over bumpy surface
Post by Paul B on Nov 5^th, 2006, 9:21am

Ohhh, there's plenty of us had that before.

Pin-pointing it is not so easy, it could be one (or more) of a few things.

First thing to check and try would be the front stabilizer bar (anti-roll bar) bushes. They're the cheapest & easiest to do.

Then maybe look at the front suspension wishbones.
They have a large rubber bush at the back of them which is cheap and easy to replace. But, if the swivel/knuckle joint at the front of them has gone, you're in trouble. That part is not replaceable and the whole wishbone would need replacing. Not only would that cost you nearly 100 quid a side, but there's currently none available from Ford. :o

Almost forgot to say, there's also some drop link bars which could be duff. They can be bought for about £30 a pair.

Here's a couple of links you should look at. And while you're there, there's plenty more too. Just click on the buttons that you should see down the left of the page.

Front Wishbones (http://www.fordscorpio.co.uk/wishbone.htm)

Front Link Rods (http://www.fordscorpio.co.uk/linkrods.htm)

Title: Re: knocking when going over bumpy surface
Post by standarren on Nov 5^th, 2006, 10:10am

your a star is there any way i can check these myself before i take it to the garage not sure what to look for

Title: Re: knocking when going over bumpy surface
Post by Kjetil S on Nov 5^th, 2006, 10:49am

Movement, basicly ;)

First, try to wiggle the anti roll bar as hard as you can. If the ball joint gives in, then it's shot, then try to see if you can get any movement in the roll bar bushes. There shouldn't be any.

Lastly, try and see if you can get the wishbone to move sideways (this should also not be possible)

Title: Re: knocking when going over bumpy surface
Post by Spannerdemon on Nov 5^th, 2006, 7:56pm

Stabiliser Bar Info: HERE (http://www.fordscorpio.co.uk/manual/suspension/FSuspStabiliser.pdf)

This is the easiest to do, and hopefully will be what your noise is.

The bushes are under the two bolts as in FIG 4. There's one bush on each side, and they split in the middle making them easy to replace.

If these are missing or damaged, then you can replace them WITHOUT removing the link assemblies (as stated in fig 3).

It's about a 35/45 minute job.

PLEASE don't work under the car unless you have it properly supported!! ;)

Title: Re: knocking when going over bumpy surface
Post by Octavian_P on Nov 6^th, 2006, 7:21pm

The knocking i also had it on the 2.3 ...it was one of the wishbones bushes, about 30 euros at ford main dealer. Very easy to change...looking at my mecahnic ;D