[alfa] Re: brake pressure sender failure?

["skippatnode" <skippatnode@xxxxxxx>]

Vangelis,
    Take that switch out and check it.  I'll bet it is OK.
    That 'splitter' has a sliding piece with a notch in the middle inside it.
If the pressure on either side drops, the slider slides and turns the switch
on.  This will sometimes happen when the pressure becomes unequal while
bleeding the brakes, too.  You can reset the slider by cracking a bleeder on
one side of it and having someone press the brake pedal until the light just
goes out.  Sometimes you have to move to a bleeder on the other side before it
will go out.
    If it comes back on again while driving, you have a problem in your
braking system that needs to be located and fixed.
Skip Patnode
67 Duetto
Norfolk, Va


Date: Mon, 5 Apr 2004 14:56:07 -0700 (PDT)
From: Vangelis Kokkevis <vkokkevis@domain.elided>
Subject: [alfa] brake pressure sender failure?

The red Brake light in the instrument cluster of my 73
gtv started staying illuminated even after I release
the handbrake.  I traced the problem down to the brake
pressure switch at the front/rear brake line splitter
in the engine compartment (passenger side, bolted onto
the inside of the right fender).  The terminal at the
center of the switch where the orange wire connects to
is permenantly grounded.  The brakes in the car work
fine so I suspect the switch went bad.  Would air
bubbles trapped in the brake lines trigger the switch?
 Does anybody know if these switches are available
seperately?   Alfa Parts does not list them.

Thanks a lot,
Vangelis
Mountain View, CA
73 gtv
83 spider
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