Hello All,

Had had rotors replaced and brake lines (all new), now when i brake its vibrates (only noticeable after 50+). I have checked the caliper bolts, all is tight.

Curb'd the car previously before changing brake setup - what could cause the vibration from this possibly?

Thanks


Modified by Mohsin at 11:29 PM 6/27/2007

 

anyone?

 

does it vibrate through the steering wheel?

did you ever get your car aligned and checked out after damaging it by running it in to a curb?

 

yep,

it vibrates via steering wheel. Had the car checked and aligned, nothing bent.

 

steering rack needs attention.

 

when i shake the steering wheel without the car on it makes a slight knock sound when the steering is moved to the right

 

messure the runout on your rotors, did you use cheap autozone rotors?

 

brembo drilled,

can you explain runout?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mohsin &raquo;</TD></TR><TR><TD CLASS="quote">when i shake the steering wheel without the car on it makes a slight knock sound when the steering is moved to the right
</TD></TR></TABLE><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tyson &raquo;</TD></TR><TR><TD CLASS="quote">steering rack needs attention.</TD></TR></TABLE>

 

is a DC2 rack bolt in?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mohsin &raquo;</TD></TR><TR><TD CLASS="quote">is a DC2 rack bolt in?

</TD></TR></TABLE>

a bolt in for what car?

 

sorry, forgot to mention, car - EG6 SiR.

 

Did you check the condition of your tires?
]

 

new goodyear f1's. Weird thing was when I got the brake setup installed it didnt vibrate but now over time its vibration has gotten worse. Could it be the inner tie rods causing the problem?

At the moment as Tyson pointed out looks like the rack as there is a slight knocking sound coming when i turn it quickly right without the engine on.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mohsin &raquo;</TD></TR><TR><TD CLASS="quote">sorry, forgot to mention, car - EG6 SiR.</TD></TR></TABLE>

thats a big 10 4 good buddy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mohsin &raquo;</TD></TR><TR><TD CLASS="quote"> but now over time its vibration has gotten worse. .</TD></TR></TABLE>

It's quite possible you could have warped the new rotors. How many hard braking situations have you had? Be honest, you'd only be lying to yourself. We can only help if we have 100% facts.

 

when you have play in your steering, it becomes a chicken and the egg situation with warped rotors.

a warped rotor will induce movement in the suspension. but excessive play in your suspension will cause the car to vibrate, commonly described as "violent" or "horrible shaking". a warped rotor alone will not cause this. if the steering and suspension is tight, as in a new vehicle, all that will be noticable is a mild pulsing at the steering wheel. fixing the rotor alone will only remedy the symptom temporarily. as the problem is the play in your steering and the reason why your rotors warp more easily. so fix the problem, by fixing the steering rack.

 

i'll be changing the rack asap, quick question that hasn't been answered above; im assuming a dc2 rack is PnP?

thanks

 

People have also attributed bad axles to steering wheel shaking too

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Crazydave &raquo;</TD></TR><TR><TD CLASS="quote">People have also attributed bad axles to steering wheel shaking too</TD></TR></TABLE>

under braking?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tyson &raquo;</TD></TR><TR><TD CLASS="quote">

under braking?</TD></TR></TABLE>


I should have re-read the post..

sorry...

 

How about your bearings?

Have you check that?

Did you check your caliper mounting too.. if that is look or ****-eyed.. that could cause weird issues too.


did you check the pin slides?

 

bearings would cause the car to vibrate constantly though?

As for the caliper i'll have another check tonight.

mos

 

there is no such thing as a perfect rotor, not even new ones. You should have your rotors resurfaced to ensure they are trully straight

 

what if the hub is not straight?

 

I think you just answered your own question