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 Post subject: Re: Shudder over 100km/hr
PostPosted: Sun Mar 01, 2009 10:06 am 
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Location: Tweed Heads
Well the problems back, and I'm not sure it ever went away. I've had the wheels balanced and aligned 3 times now, and it is definitely still there. Weird problem only happens over 100kms/hr and is almost unnoticeable on a dead level road. As soon as there is a slight slope the wheel starts to shudder in a cyclical pattern. It will slowly increase the shudder for about 5-7secs then go away for 5-7secs.

If I disengage the clutch it does not change, so it doesn't seem to be drivetrain.

Any idea? A bent axle? I'm trying to figure out how much this is going to cost to fix and where I can get it done.


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Sun Mar 01, 2009 12:23 pm 
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Location: 4870
Get your tyres checked, I had a hyundai assent once that for the love of me know one could seem to fixs .I also went thru this whole saga of wheel alighments ,balances etc etc .Turned out that the internal structure of the tyre its self started coming apart,couldnt tell buy looking at it or buy balancing as the balance machine only balances the tyres/rims at 60 ks so never showed up.The answer comes buy doing Two things 1. swap back for front rims see if the shudder goes away or 2 buy putting on another set of rims on the front to try.Make sure you are running 1 Degree of negative camber on the front ask for print out from wheel alignment to check this.(dont take there word for it ).If after this you still have ay shudder try inspecting the wheel bearings then move onto your cv joints, but id say its a tyre structure probleum.Let me know how you go. :)


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Tue Mar 03, 2009 7:48 am 
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Don't think it's tyres or mags, they have been replaced with new ones this year and the problem didn't change (I was hoping the whole tyre and mag change would fix this problem, but it didn't). Might be wheel bearings I guess, that would make sense. When I get the chance I'll have to find a place to check this out for me.


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Tue Mar 03, 2009 7:59 am 
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You'd hear a problem with the wheel bearings long before you'd feel it. Shudder can also be caused by worn steering/suspension components, however because yours is happening at high speed I would definately suspect the problem is somewhere in the rear.

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 Post subject: Re: Shudder over 100km/hr
PostPosted: Tue Mar 03, 2009 9:38 pm 
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The shake is definitely coming from the front wheels. I would not rule out shocks as the rears had to be replaced recently as they were weeping. Car is around 67XXXkms so it's still pretty fresh. I think the previous owner may have hit something at speed to cause this kind of issue.


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Tue Mar 03, 2009 9:46 pm 
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Interesting. Front wheel shake is usually felt at low speed.

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 Post subject: Re: Shudder over 100km/hr
PostPosted: Wed Mar 04, 2009 5:31 pm 
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Try going faster then the shudder speed then apply the brakes gently to bring it back down thru the shudder speed .Note if the vibration is worse or better .If its worse theres a front end probleum,If its better or the same then thers something going on in the drive train.If you suspect drive train then do as above but instead of applying the brakes dissengage the clutch, if it vibrates worse its the cv joint,if it doesnt then I would be looking at wheel bearings, bent or warped disc.hope this helps


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Wed Mar 04, 2009 10:09 pm 
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I will double check this tomorrow, but from what I can recall the shudder does get worse if I slightly brake. It seems the worst between 100-120kms/hr, not that I've driven faster than 120km/hr :^o If I disengage the clutch the problem doesn't get any worse, it's about the same.

So might be looking at bearing or warped disc? Any idea how much this is likely to cost for an Ignis?


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Thu Mar 05, 2009 5:35 pm 
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Wheel bearings shouldnt be to dear Id say around $50 should be enough, Just get them after market from a bearing shop or you might have a heart stop moment at suzuki parts counter.Last time I looked dba made discs to suit and you could get crossed drilled and ventlated also If your heart desired but Dont quote me But I think they where around the $130 mark each for the standard discs. hope that helps.


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Thu Mar 05, 2009 6:24 pm 
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It might be a long shot, but it could be a problem with the CV that is putting a driveshaft off balance.

Warped disc will only shudder during light braking, never when you're accelerating or cruising. Wheel bearings will make noise long before they collapse, and they would have to be near collapsing to make the car shudder.

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 Post subject: Re: Shudder over 100km/hr
PostPosted: Thu Mar 05, 2009 9:36 pm 
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Applying brakes though the shudder speed immediately stops the shudder, I checked today. Disengaging the clutch does make no difference. I'm thinking CVs now it's the most logical explanation. There is no noise, so I doubt it's a bearing, I remember the racket they made on my swift when they went. Never had CVs go before, should I be looking into a specialist place? Would Suzi Auto be a good choice for this type of repair?


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Thu Mar 05, 2009 10:08 pm 
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Out of curiosity, has your IS had the driveshaft circlip issue fixed? I know that won't have anything to do with the shudder, just curious.

Replacing the driveshafts isn't a specialty job, and given the price I would be having them removed and inspected first. ;)

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 Post subject: Re: Shudder over 100km/hr
PostPosted: Sun Mar 22, 2009 9:49 am 
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Yeah all manufacturer issues have been fixed. I've been doing some research on the issue and it does seem that wheel balance is the most likely cause, despite having the wheel balanced a few times. I read that newer cars, particularly with low profile tyres (and cheap ones!) can develop shimmy.

I found this site, that pretty much matches my exact problem:
http://www3.telus.net/jesstzn/hunterbalance.html
Sounds well researched, but I have no idea where I can find an expensive balancing machine such as the GSP9700 in the Brisbane/Gold Coast area.


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 Post subject: Re: Shudder over 100km/hr
PostPosted: Mon Feb 09, 2015 2:44 pm 
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Realised I never updated. I got the wheels balanced at JAX Tweed Heads (4th place I tried) and the car has been golden ever since. Geesh there are some dodgy tyre places on the gold coast...


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