brake problems

[xr8eater]

my r32 has a problem when under brakes it pulses some times not all the time but especialy under hard brakes is this the abs or a warped rotor has any one else had this problem

[Duncan]

hmm could be either...

warped rotor will happen under moderate to hard braking, you will feel and hear them

abs only kicks in under the hardest braking, you can feel it thru the pedal, much more rapid than a warped rotor.

[xr8eater]

err suspected as much not happy

[awurth]

Yeah ABS will kick in and it scares the crap out of you if youv'e never felt it before. You feel the pedal pulse and it gives off a disconcerting Knocking noise. I've only hit it so hard that ABS has worked twice, once in the rain and later to feel it again in the dry, how often are you hitting it????

[xRHETTx]

Al rotors start to do this once they get worn down a bit. You probably just need to get ur discs machined. It'll cost about $25-30 per disc.

[xr8eater]

i dont think i am hitting the brakes hard enough but just was not sure weather the abs can loose its tollerance. Here is on thing i noticed it only does it when its hot or been driveing for a while

[makaveli]

i have a similar prob in mine

although its when im not hard on the breaks, when i push down on the pedal its not smooth and firm, you can feel little bumps.

im stumped for ideas...

as i have had the disks and pads replaced, although brakes may need to be bled and fluid changed.

what do you guys think?

sorry xr8eater, i may have a similar or the same problem

take it easy

Mark