Steering shuddering under hard breaking
#1
Steering shuddering under hard breaking
Would like to get people opinion here. Have an 02 Sti with a steering shuddering under high speed braking but under low speed no problem at all when braking. these are so far have been check:
- brakes pads & rotor all normal wear
- have try replacing the brembo caliper as well with a japan surplus but still same problem
- replace hub assembly n wheel bearings
- replace damage rack holder bushing.
- all underchasis bushing is fine
- wheel balance and alignment
- air pressure on each wheels is even
- tie rod and rack end replace
- clean abs sensor even though no abs light coming on
any suggestion guys?
- brakes pads & rotor all normal wear
- have try replacing the brembo caliper as well with a japan surplus but still same problem
- replace hub assembly n wheel bearings
- replace damage rack holder bushing.
- all underchasis bushing is fine
- wheel balance and alignment
- air pressure on each wheels is even
- tie rod and rack end replace
- clean abs sensor even though no abs light coming on
any suggestion guys?
#4
As above, classic warped disc syndrome. I had really bad vibration when braking hard, totally gone now new discs are fitted. You can avoid the discs warping by doing the last few miles with easy braking. This stops a really hot pad sitting over the disc and warming up a small section.
#5
I will be interested to see the outcome of this. I had the same with my car, replaced everything with new and still no fix. Even brand new disks and pads made no difference at all. The main stealer said it must be warped alloys so even replaced those, still no difference. Track rod ends, track rods, bushes, suspension, etc all replaced still no fix.
#6
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I will be interested to see the outcome of this. I had the same with my car, replaced everything with new and still no fix. Even brand new disks and pads made no difference at all. The main stealer said it must be warped alloys so even replaced those, still no difference. Track rod ends, track rods, bushes, suspension, etc all replaced still no fix.
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#8
Cleaned the faces when the new discs were fitted.
My point to the OP is that it isn't necessarily the discs. Don't do what I did and just throw cash at the problem. Have each item checked if possible before new items are unnecessarily fitted.
My point to the OP is that it isn't necessarily the discs. Don't do what I did and just throw cash at the problem. Have each item checked if possible before new items are unnecessarily fitted.
#11
#12
That's just a bit scary, would presume this would have to be during manufacture, worrying that variance on a rotor is so slack that it can be felt despite brake geometry tolerances. Certain manufacturers will be worse at this than others, it's the nature of making stuff. Care to name a few (if discernable)?
#16
That's just a bit scary, would presume this would have to be during manufacture, worrying that variance on a rotor is so slack that it can be felt despite brake geometry tolerances. Certain manufacturers will be worse at this than others, it's the nature of making stuff. Care to name a few (if discernable)?
#19
if you can get the car in a brake roller tester, try that but you'll have to get the rear wheals off the ground, that'll def sort out if it's the brake discs, make sure all joints are good and get the wheels balanced
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