Brake pedal pulsation '88 5KCSQ Avant

[Larry C Leung]

I'll pass this on too, but the pulses are large. And, MY car's bomb is
dead, and I have no pulses.

LL - NY

On Thu, 30 Aug 2001 16:02:34 +0100 Paul Heneghan
<paul.heneghan at bbc.co.uk> writes:
>To: quattro at audifans.com
>Date: Wed, 29 Aug 2001 09:30:59 -0400
>Subject: Re: Brake pedal pulsation '88 5KCSQ Avant
>From: Larry C Leung <l.leung at juno.com>
>
>>Brake pedal pulses all of the time, even when the car is idling and
>>stopped on the above, new to the owner (nice pearl REALLY clean, 
>with
>>Fuchs, kinda envious of the Fuchs! and the fact that it's an Avant). 
>Bomb
>>is dead, and didn't drive the car, but it really feels like the ABS 
>is
>>pulsing even when the car is perfectly stopped. Bad sensor cap or
>>something?
>
>A bad bomb will cause very noticeable pedal pulsation.  This is the 
>effect
>of the pump pumping discrete quantities of fluid 10s of times every 
>second.
>The bomb smooths out those pulsations.
>
>From what I remember, ABS sounds noisier.
>
>Paul
>
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