re. Brake pressure accumulator

[Swann, Benjamin R. (BSWANN)]

George,

I have experienced similar if not same problems.  The vibration was resolved
by replacing the old rotors which had developed a slight runout(warpage),
and the problem became more pronounced when hot from extended braking.

The feeling of power assist lost I have not resolved, but understand it is
related to the AC running and the MC becoming marginal.  I have a new MC I
need to install to see if it resolves the problem.  I suppose it could alse
be attributed to a marginal Hydraulic booster as well.

Replacement of the front rotors and pads has significantly reduced the
problem but it does show up on extended driving/brakeing with AC on.

Hope this helps.  Let us know if you resove the problem, as your not the
only one with it.

Ben Swann
'87 5kcstqw

<From jkot at imap.pitt.edu Sun, 20 Aug 2000 18:34:48 -0400
Date: Sun, 20 Aug 2000 18:34:48 -0400
From: George Kotjarapoglus jkot at imap.pitt.edu
Subject: Brake pressure accumulator

87 5000TQ has been acting srange lately.  After a drive of about an =
hour, the brake pedal would drop when depressed and have a hard pedal =
feel of no power assist.  The next the car would be fine.  Now it is =
occuring on shorter runs.   It also seems to give rise to a pulsing =
feeling in the steering when the brake pedal is depressed.  The later =
symtom is caused by the rotars, but these were just replaced recently =
and I have had not problem with them otherwise.

Has anyone had a similiar experience.
George Kotjarapoglus   jkot at imap.pitt.com>