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I've got the ~~wobbles~~

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Old Jun 18th, 2012, 10:59   #11
scoobysn7x
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Quote:
Originally Posted by C70T5Driver View Post
I've also been having the wobbles on and off for the last year or so and its getting worse. Strange thing is I can set the car at 60, on cruise control, on a nice new patch of motorway and the vibration through the cabin, noticed through the wheel, accelerator and particularly the passenger seat will come and go about every 30 seconds or so, 30 seconds of vibration then 30 seconds of no vibration.

My car has done 165K of motorway miles since new and runs perfectly apart from this - I'm desperate to fix it as I'm sure it cant be good for the rest of suspension, steering (I'm no mechanic btw)

I also get a lot of wobble on braking , my local non dealer garage recently changed disks and pads about 5k miles back, they told me the old disks were warped, it seemed better for a while but soon the wobbles were back.

Other odd thing, it seems that I have to be driving for 20-30 minutes before the wobbles start, once its starts its there for the entire journey.

Any advice is greatly appreciated
That sounds like you could have a sticky caliper, that cause problem once the cars been driven for a while heating the disc up. I had a similar issue on an almera GTi used to get juddering on and off and very bad vibration on braking. Easy to diagnose I took the car on a spirited drive got back and felt each alloy in turn the one with the sticking caliper almost burnt my fingers it was so hot!!!!!, cheap enough fix about £120 for a recondition caliper fitted...
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Old Jun 18th, 2012, 17:44   #12
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Well I have now found the exact problem with mine!......

The Drivers-side Inner Track Rod has severe(ish) play. We got the car up in the air and grabbed the wheel at the 3 and 9 O'Clock positions and the free play was obvious.

The steering rack end of this track rod is where the problem is and needs replacing I'm getting a new inner track rod and a new track rod end (might as well whilst we're there).

This then should be the cause of the vibration, a 'loose' wheel in effect or where the wheel has movement independently of steering input.

I too have the 'pulsating' vibration where it comes and goes in regular intervals on and off.

The tyre is also showing unusual tread wear compared to the others.

To be honest I've been less than impressed with the suspension on this car and have already replaced the wishbones and two 'stays' on the back, and now this track rod - I've only done 53K miles.
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Old Jun 21st, 2012, 01:49   #13
C70T5Driver
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Thanks for the advice on the caliber, I'll give your test a try and see if I can track down the problem as you suggest. Cheers
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Old Jul 9th, 2012, 20:00   #14
ck69
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I have posted this problem under "Vibration". Without knowing if you have automatic or manual gearbox, I can say to 99% for shure it´s the drive shafts. They all have this kind of problem and are very difficult to detect. I have spent over 5000€ changing EVERYTHING, and I mean the whole new front of the car, suspention, rods, triangl mount etc etc. After hearing all the different mecanics saying" well if it´s not that we continue changing". The only thing is that it´s going to cost you a lot of money. Finaly I spoke to a true mecanic in Sweden, and he told me that the drive shafts are a problem with Volvo, but they are very difficult to find out of. But in the moment I told him about the vibrations he said directly driveshafts!
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Old Jul 10th, 2012, 12:13   #15
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That's interesting, thanks.

I forgot to reply to this but even after changing the inner/outer tie rod I STILL have the problem.

I did some research into Focus ST's with the same running gear and Driveshafts were mentioned there too.

I cannot rule out a tyre problem yet and the only answer is new tyres but I can't quite justify spending £500.00 until I know if there's anything wrong elsewhere.

We're having a better look at it again this week so fingers crossed....
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Old Jul 27th, 2012, 12:29   #16
eretron
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Hello,

it seems like I have similar problem as you guys... The only difference is that I'm getting "wob wob wob" sound from rear wheels at around 30km/h and bellow.

I've changed front and back wheels and the sound transferred to the front with slight wobble that I've felt at the steering wheel. So I thought that it's defect tyre. Changed the tyre with one that's left spare from last season (did the balancing again), put wheels at rear axle again, but the wobble is still present...

Is it possible that the alloy rim itself is bent/buckled and if is, is it repairable.

I've ruled out bearings as it's moving from axle to axle...

Thanks in advance
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