I would like to ask is it possible for an ABS unit to be faulty? I'm > having
> a deep brake pedal travel and the master cylinder has been changed. All
> brake lines have been checked along with wheel bearings and ABS sensors.
> Brake servo has been tested n confirmed okay.
>
> Whats strange is after a corner the brake pedal travels all the way down > but
> after a quick pump again its okay. When the brakes are pumped I can > hear a
> hissing noise from INSIDE the ABS unit. Air was removed from the master
> cylinder even though the car has had two brake fluid flushes within a > week
> trying to locate the problem. I dont know where the ABS unit is getting > the
> air intake from which baffles me. Does the hissing noise indicate that > the
> valves are worn inside the unit?
>
> Any ideas guys?
>
> Jim
>
>
Odd, BBA might be able to test it
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