Guesty

Hope your okie chaps ive got a dilema the other day was driving down the bypas and started brakeing and seems that the sti has developed a judder like driving over the painted sleep bumps on the road this ever happened to any of you ? What could be the main cause and whats best way to track it down ?

Cheers dave

ZANY

Took me good 3minutes to work that one out!!

Proper fickie me initt

Guesty

My breaks aren't spongey though they work as they should but have a judder

ZANY

Try test driving on a empty smooth road or big car park to determine if the discs maybe warped etc, my abs was kicking in too early causing judder when braking hard but after installing a brake stopper kit my pedal is a lot more firm and brakes are much sharper aswell
Just my 20p's worth mate

gc8simon

Do you feel the judder through the steering wheel or the brake pedal itself?

Guesty

Its more like the passenger side you seem to feel it more and ive done it on a smooth road so defo the car not the road it only does it about 50 what does the brake stopper kit consist of pal

littlebit

Mine have started to do this and they are only a few months old it also makes the steering shake

Don Clark

ZANY

Maybe a good idea would be to check balancing on the wheels not very costly this will also rule out any slight buckles and condition of the tyres as well not that costly and give you piece of mind on that side of things, discs usually get warped as well with people keeping there brakes pressed at the lights when they are hot instead of using the parking brake...

8ulldog

iTrader: (4)

My hatch eats discs about every 6 months, no idea why. I have had it checked by 2 very respected specialists who have both said that they can not find anything wrong, tried different discs, though every 6 months the front, drivers side disc will warp.

Having looked around on other forums this is not uncommon. A new front set always cures the issue, for a time.

lazscooby

iTrader: (2)

Do you always put the same make back on or have you tried a few different manufacturers? Looking to replace my front discs soon. Any recommendations?

fpan

iTrader: (11)

Sounds like either a sticky piston or a hub that is not true?

8ulldog

iTrader: (4)

I have had a few different brands (All established and recommended). It's possible that there is an issue, though 2 very respected garages have had it in for sometime and have been unable to find the issue, especially as new discs removes the issue for a time.

I am currently using ScoobyWorx discs. if you get to the bottom of it let me know.

Darrell@Scoobyworx

iTrader: (5)

When I have had this on a non Subaru as you say new discs removed the issue short term.

After replacing discs twice it was clear that there was another issue.

So replaced wheel bearing and a 3rd set of discs fitted same again after a few months.

So so I changed the hub for a second hand used unit I had and hey presto problem solved 2 years without issue.

I would say either hub or flange issue or possible bearing. Hard to know 100% and checking all parts with a dial gauge may help determin which it is but replace the hub/bearing/flange and new discs and pads and job will be a good un. It's just not cheap that's all.

salsa-king

every six months!!! covering how many miles?


don't think mine have ever been changed in 34k miles (well not in the last 5yrs of me owning the 330s)

Guesty

This could be my problem as there is also a knock or bearing crunch when going from forward to reverse or vice vers not all the time though sounds like a bike wheel when the bearings gone not got round to investigating yet dont do alot of miles in car only moves every other weekend and thats only around town

8ulldog

iTrader: (4)

I'm averaging about 12,000 miles per year. Roughly every 6000 miles the drivers side front disc will warp. Good call on the other parts, I'll change them next time too.