[Vwdiesel] brake frustrations

[Brian and Ruth Decker]

Seems the only thing you haven't perhaps tried is the booster and air pump
Brian Decker

-----Original Message-----
From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com] On
Behalf Of dieseltdi at verizon.net
Sent: Sunday, April 07, 2013 2:48 PM
To: vw fans
Subject: [Vwdiesel] brake frustrations

OK guys, I am about ready to just cut this jetta into pieces and sell it for
scrap!!!  The brake problem STILL eludes me.  Just as a reminder, the car
has Scirocco rear disc brakes and Cabriolet (rabbit) front discs.    The
story so far: 3 master cylinders (four if you count the original that was in
the car) so I know the problem doesn't lie there, new rear hard brake lines,
new brake proportioning valve, removed and cleaned residual brake pressure
valves - they work fine, removed and rebuilt both rear brake calipers - they
operate as they should when the brakes are depressed, I have bleed nearly 2
gallons of brake fluid through the system - no air left, I have visually
inspected all hard lines and soft lines for leaking or swelling - nothing is
apparent but all four wheels seem to bleed just fine with good pressure, but
the system is still very mushy and the pedal will go to the floor and
finally, just to really make things odd, when you start the car and the
brake booster comes on line, you loose ALL pressure in the brake system and
the pedal will go directly to the floor with NO resistance!!!!!  I have done
a lot of brakes in a lot of different vehicles but I have never had one that
kicked my butt like this one is doing.  Out side of replacing ALL hard and
soft lines, anyone got any other suggestions before I call it quits and just
part the #$%@# think out?  Hayden


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