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Discussion Starter · #1 ·
Hi guys.

Thought i would seek some advice about a little i have. Only bought the car 2 weeks ago (2004 zetec s). I have noticed between 60 and 70 there is a vibration that can be felt through the seats.

Ive had the wheels rebalanced and the tyres are in excellent condition. There is no serious vibration through the steering wheel.

Just at motorway speeds a slight vibration can be felt, its like driving over a rough surface, but is constant. Its not a major problem but as the car is coming out of warranty soon i would like it sorted.

Its booked into ford in the new year.

Anybody`s views would be most helpful.

Cheers
 

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Premium Member
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19,696 Posts
i would say its either a dodgy tyre or a slightly buckled wheel on the back end if the balance is OK.

you could always put the rear wheels on the front & see if the vibrations move to the front or not & then you know if its the wheels/tyres or something else wrong at the back end.
 

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I'm Bang Tidy
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9,548 Posts
I would agree with the above.
It sounds like a buckled wheel,where the car has gone over a pot hole at some speed and it leaves
a flat area on the alloy rim,usually on the inner
rim which is weakest.
You can usually balance these ok,but if you look
at the rim as it is spinning on the machine you
can see the (out of roundness)flat spot,and it
is this that causes the bum vibration through
the seat.
In my expeirience the only way to cure this is to
identify the damaged alloy (alloys) and either
get them repaired some companys can straighten
buckled wheels,some won't touch em',or
replace the alloy with a good un'.
It is a fault that really irritates when driving,
you won't cope with it for long like that.
 

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MEG Corporal
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667 Posts
My St220 is the same as yours but at 70-80mph

Wheels are all straight,tyres are all balanced fully,tracking has been laser lined up.

And it does not do it all the time ?????

I was thinking could it be the normal dodgy rear subframe bush being worn out

Good luck finding it i am going to have a look at mine on saturday :L
 

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92 Posts
Discussion Starter · #5 ·
I was thinking along the same lines, the bushes. I think i can feel a vibration at lower speeds but def between 60 and 70 its there.

Wheels are all fine and the tyres are first class condition.

Hopefully ford will find the problem in the new year. Fingers crossed lol
 

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MEG Corporal
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667 Posts
let us all know mate

I am going to book mine in as it is under warranty and hope they find the bushes even a little worn
That way i get new ones :gayfight:

Good luck
 

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Couch Potato
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2,944 Posts
Could be the offside auxilliary driveshaft centre bearing. Try doing a racing start on a quiet bit of road, if the driveshaft bearing is going it will judder slightly.
 

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MEG Corporal
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801 Posts
i am from the vibrating eng club too.
have you checked the brakes for wear?
 
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