With a Hose to Your Ear, try to determine where it is coming from ~ Is it Constant

with Eng' Running ~

        The Fitting where the Vac'Hose Connects to the Booster is PushIn Type with Rubber

Grommet, Listen There & around the Base of the MasterCyl' ~

                                                        ORR ~ DeanB

On 23 Oct , 2016, at 8:32 PM, thewestyman wrote:

> 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