Groaning Brakes

[Joshua Van Tol]

On Monday, January 27, 2003, at 03:21  PM, Paul Meyers wrote:

> Likely, the previous owner (I'm assuming there was one) replaced the
> axle shaft with the wrong one. I was supplied with what looked like a
> nifty rebuilt shaft, but, when I installed it, it would act just as you
> described. It had only half the correct number of ABS teeth. The ABS
> works by comparing the waveforms presented by the rotating teeth on
> either side of the car. If it finds a difference, it modulates the
> brakes to bring them to within tolerance. Since at slow speeds the
> waveforms were always out of tolerance, the car would groan at each
> stop
> just before coming to a stop. The problem went away when I installed
> the
> correct shaft with the right number of teeth.
> Paul Meyers
>

Also, take note that on the earlier cars, you need to use plastic
ablative caps for the wheel speed sensors when you install them, or you
won't get the depth right, and you'll have similar symptoms. Also,
check for rust on the cv joints, and wire brush and repaint as required.