Steering wheel shaking over 60mph

[Torpa]

Check the wheelbalancing weights.
Sometimes tires separates check for bumps in the threadwear.
Often when its a balancing problem the chaking comes at a specific speed like between 70-75km/h and over that its gone.
If its a bump in the tire it feels all the time.
Check also the threadwear on the inside of tire if is bad alignment you can get one low one high and so on spots.
Hope you understand what i meen.

Sorry just read you had the balancing checked.
You had been driving on a bad road, check your rims for bumps.
Even if its broken/bumpy its possible to do a zero balance it, but you will feel the bumps in the car.

[Chris017]

Tyres are all good pall been checked by 3 garages now and balanced every time so god knows what it is. I'm thinking more about a clutch problem as in broken or buckled if that's possible as slipping like mad or a actual gear box problem.


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[Torpa]

Does it shake if you let the power off or is it just when you keep down the accelerator if so it might be the clutch but if the clutch is so damaged you schould have more problems like bad rattle all the time.
I don't know if you have a dual mass flywheel but they can cause problems too but more at low speed when you let the clutch off at low gear.

[Chris017]

No converted to single mass and all was fine but few days after I remapped the van and after a few weeks the problem of slipping clutch started now I have this problem. Well it's not so bad if someone is in the van but still present. When I'm on my own it really does shake as soon as it goes 60mph and above. I do need to order a performance clutch but no time as of yet as busy in work but will have to order it Monday now and hopefully that will fix the problem but will be able to tell once have a look in the box. When it's jacked up and you spin the passenger wheel it does crunch abit back and forward when spinning the wheel but the drive shaft is fine and the cv boot is intact no splits so not sure what is going on


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[Torpa]

If you think clutch slips you can test it at as follows.
Drive on highest gear in lower speed when you feel you have a good tourqe from the motor at a constant speed step fast light on clutchpedal so the clutch slips if its good it should get a grip instantly.
You can test the cv joint by driving on a parkinglot, steer full to left and then to the right if it's bad it often sound like somethings grinding.
A wheelbearing you can test also jack the wheel upp spin it and place a hand on the spring if bearing is bad you can feel vibrations in the spring but when they are broken it usually sounds very bad when driving.

[Chris017]

I will be jacking the car up later on today now to check everything over and to change wishbone bushes as they are knackered. Will check the Calipers and disks and pads same time but the problem is still unknown for now but everything is solid on the van and can swear they been on there since new and the van is a 06 plate. Will get to the problem in the end but just might end up changing loads on things for no need on the way.


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[Torpa]

Check the outer steering arm balljoint ( dont know the correct english name) with the wheel on jacked up car place hands at 9 and 3 o clock on tire push pull towards you, if its bad you can feel a play in the joint.
If its a small play ask a friend to put his finger between joint and wheelhub at the dustcover, push and pull the wheel.

[Chris017]

Update time. Been on the van all weekend and changed a few bushes that looked loose when up in the air and using a bar to check for play. To be honest the ones I changed didn't really need doing but changed them anyway for piece of mind. I have checked everything and I mean everything and all is really good that I can see.
Thing the diagnosis might be something to do with clutch or clutch plate or maybe even the single mass. I used a brand called transmech and asked around and people say they are complete dog shit. But to be honest it was fine until I remapped the van. So I believe that the problem is coming from something related to the clutch.
Has anyone had this problem or heard of vibration coming from a slipping clutch or could be warped or clutch plate broken etc???


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[Torpa]

I just remembered one car i had in for repair with shaking steeringwheel, like you i checked ewerything.
After 2 days of searching i finally found the problem it was the surface between rim and brakedisc that was corroded so the rim was not flat on.
Here in sweden the roads are salted in wintertime and everything corrodes like mad and with aluminum rims against the steel brakedisc you get a elektrolysis the material wanders.
A tip do not use copperpaste on the surface between rim and brakedisc if you have aluminium rims that just speeds up the elektrolysis use ceramikpaste instead.
Copperpaste works fine on steelies.
There is one more thing to check if you have aluminum rims often there is a plastic centering ring in it if its missing you can get vibrations.
Hope you find the the problems.

[Chris017]

Funny enough I used a wire brush round the centre disk as in the lip your talking about just for a quick clean but I not long put new disks on front. Will check the rubber insert on the alloy. I have recently put 10mm wheel spacers on the rear but not sure if that will cause vibration to the steering wheel possibly. Another job for in the week now to check.
My handbrake has been sticking on in the mornings so will have to check rear disks and pads and the handbrake cable. Maybe as simple as grease or lube on the spring on calliper handbrake release. Had vibration few years ago on steering wheel and that was loose disk on rear and seized calliper on the other side so might be rear issue but I doubt it but never know


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[Torpa]

It's just the pads that sticks of the moisture in the air they get a fine coat of rust and sticks to disc, as long as they don't get warm when you drive it's ok.
I guess they sticks harder if its been raining under the night.
I have the same with my caddy and i have just changed calipers discs and pads and had the same thing with my ford.
You can see the rust contours from the pads on the discs if you reverse the car a couple of cm then you see what i mean.
If you have an extra set of wheels try with them and take the spacers off, a friend of mine had vibrations caused of the spacers on his Vw Vento.
It's quite often the simpler things that makes the most problem, i know

[Caddyshackle]

Had a similar problem with a Citroen Relay at work, wheel bearing was done for, also similar problem with a transit which turned out to be rear pads and caliper despite feeling to everyone like it was at the front.
With the disks and calipers off is there any play in the hub?
Is it always at 60mph no matter what gear you are in?
I'm new to Caddies but a few sports cars I have had needed new steering rack bushes to resolve a bit of shake.

[Chris017]

Just noticed today that my rear pads are really low so will sort that out Saturday morning now. The disks seem fine. Also going to try putting my steel wheels on for a spin as maybe a buckle wheel but don't think so. And will get up on a ramp again weekend with the guy I usually use as he will double check over everything like I done, he's old school so keen eye with everything


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[volkshome]

I would replace any bushes first , from what you have said I would not say it was internal in the gearbox, a worn bush anywhere in the suspension can cause all types of symptoms, any one of the 3 bushes in your lower arm can be the problem , along with a worn balljoint.
so I would take a look at all of the bushes as a starter point and any that look torn or worn replace.

[Chris017]

I will take a spin tomorrow on my lunch brake and drive up to 70mph doing the speed limit and put the van in neutral to see if it still vibrates if so it's 100% suspension bushes or wheel bearing related but doubt the wheel bearing as no grinding. JUst got off the phone to my mechanic mate and said to try it as that what he would do on test drive.
Tomorrow will be the day as this is annoying as hell.
Like I have found out on this van after looking through the service and parts receipt for previous owner that everything on this van is same parts from new with only some things changed. Lucky I'm only second owner so can change everything to new for piece of mind


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