I have to add; new brake master cylinder was installed with new O ring.  The
pedal goes down to the second stage, air is out of the system.
Hissing is very strong.
Z

-----Original Message-----
From: thewestyman
Sent: Sunday, October 23, 2016 1:45 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Hissing at booster

Hi to all,
I have some hissing sound coming from the brake booster.  I can’t imagine
what can cause it.
Any ideas?
Best wishes to all.
Zoltan