weird abs/ brake noises

[Denis]

    Sensors do that,,, one or more of them are defect.
    Mine do big  frecency vibations when i use brake swith ABS on. The abs
  computer see the wheels are not turning at the same speed so it remove
brake
  on the wheel does stop turning and so valve vibrating on abs unit.

    The sensor is defect or not in good position,,, to far or to close....
to
  close touch the CV joint like mine,,, broken then ;-(, to far there is not
  signal.

    the only way i ll use to check them is use a oscilloscope and check the
  pulses signal in the sensor connector.


    Denis


    ----- Original Message ----- 
    From: "no1of consequence" <iin10ded at hotmail.com>
    To: <quattro at audifans.com>
    Sent: Sunday, December 14, 2003 5:55 PM
    Subject: weird abs/ brake noises


    > ive got some funny brake noises + i wonder if anyone might know whats
  up..
    >
    > when backing down a steep + slippery [snowy or rainy] hill, driveway,
  etc
    > and if i  brake adn the tires slip [i can feel them slip and feel the
  abs
    > start to work] i get groans and pangs from the vicinity of the MC - it
    > sounds kinda like hitting a failling power steering pump with a coil
  spring.
    > =)
    >
    > its only ever when i back up. forward the brakes work great.  i just
did
  new
    > pads, rotors, a caliper, lubed the ebrake cables, and flushed the
lines
  with
    > new juice. it made the noises before i did any of this.
    >
    > is it a sign of a bad mc or abs pump [or whatever contraption it is
that
    > drives the abs]?
    >
    > thanx all. happy holidays,
    >
    > jim
    >
    > _________________________________________________________________
    > Winterize your home with tips from MSN House & Home.
    > http://special.msn.com/home/warmhome.armx
    >
    > _______________________________________________
    > quattro mailing list
    > quattro at audifans.com
    > http://www.audifans.com/mailman/listinfo/quattro
    >