Steering wheel shaking while braking

[Archer]

I'm getting some shake on the steering wheel under braking, I can only notice it if the car is going more than 90km/h while braking. My first thought is that the guide pins for the brakes need to be lubricated (since the pads and discs are only about 18 months / 20k km old)... Am I correct in saying I'll only need to take off the wheel and then I'll have access to get the guide pin out? I won't need to take the pads out, discs etc? It's been a while since I've replaced the discs and I can't quite remember the order of things. I may just get a tyre/brake place to do it if its cheap enough though.

 

[Ecko_1]

Seems more like your discs may be a bit warped

 

[mbayshark]

^^ this, sounds like worn discs

 

[Pitbull]

Have Discs replaced or skimmed.

 

[Lord Farquart]

Have Discs replaced or skimmed.

Find out about OEM and aftermarket replacement prices. Sometimes OEM is cheaper (As with my wife's old Ford) than aftermarket. Skimming rarely work as a permanent fix, and the cost of skimming every so often eventually outweighs the cost of new discs. Learn from a fool.

 

[Archer]

There is zero feedback/pulsating via the brake pedal, I highly doubt the discs are buggered, especially at only 20,000 km

 

[Nithan15]

There is zero feedback/pulsating via the brake pedal, I highly doubt the discs are buggered, especially at only 20,000 km

Actually it is possible especially if your disk are hot and you have water spray on them as you drive over a puddle. Also take into account not all disk are made the same in terms of quality.

 

[Ecko_1]

What car is it? Vivos have a known issue with discs warping easy due to temp changes. Happened to my wife's one around 30000km.

Manufacturers use similar parts suppliers so not too much of a stretch that your discs may need to be replaced. Not too expensive, if you have a vanilla car

 

[Messugga]

Sounds like a warped disk. Had the same issue on an old car - nothing on the pedal, only in the steering wheel. A skim sorted me out, but I sold the car half a year or so later, so don't know whether the issue cropped up again in the future.

 

[Archer]

Am I correct in saying I'll only need to take off the wheel and then I'll have access to get the guide pin out?

So now that we've gotten the usual mybb derail out the way... Sure, it could be the discs but I'd like to rule this out first since it is a R50 fix.

 

[Lord Farquart]

There is zero feedback/pulsating via the brake pedal, I highly doubt the discs are buggered, especially at only 20,000 km

I had a Peugeot that had 3x sets of front disks replaced before 20 000 km, fortunately all under warranty. You get bad batches. Current Hilux/Fortuner suffers from the same thing. Discs warping at low mileage. Toyota admitted bad batch. Go search on 4x4Community.

As for feeling it on the brake pedal, the pedal is insulated from the disks due to the oil and other components, and the basic design of hydraulic systems. You will feel it in the steering wheel.

Anyway, don't want to derail you any further, you have pins to check.

 

[TheChamp]

So now that we've gotten the usual mybb derail out the way... Sure, it could be the discs but I'd like to rule this out first since it is a R50 fix.

By guide pins you mean the springy pins that adjust the pads as it wear off? if so yes you can access those if you remove that wheel, there are cases when one gets stuck resulting in uneven wear, although that is mostly a problem in older cars where the grease has solidified and rust has set in, I don't expect this in a 20k KM car, but as you say it's the best place to start.

 

[Alacrity]

There is zero feedback/pulsating via the brake pedal, I highly doubt the discs are buggered, especially at only 20,000 km

Had the same issue with brand new Honda Civic and suspected the ABS etc. and problem was solved once I replaced the front discs & pads.

 

[Archer]

By guide pins you mean the springy pins that adjust the pads as it wear off? if so yes you can access those if you remove that wheel, there are cases when one gets stuck resulting in uneven wear, although that is mostly a problem in older cars where the grease has solidified and rust has set in, I don't expect this in a 20k KM car, but as you say it's the best place to start.

The discs+pads are that old, not the car But thanks, I'm just looking for a vague idea of how much time and effort I'm in for

 

[zizo911]

Stop playing Taylor Swift music then.