Faulty Pneumatic Door Lock System on 4KCSQ

[Doug Johnson]

Thanks Keith!
Is this an electric switch; i.e., a solenoid?

Regards,

~ Doug

----Original Message Follows----
From: "Keith Lawyer" <LawyerKG at co.laplata.co.us>
To: <quattro at audifans.com>
Subject: Re: Faulty Pneumatic Door Lock System on 4KCSQ
Date: Tue, 09 Aug 2005 09:56:43 -0600

IIRC there's only one vac line to each door solenoid.  I think your switch 
in the driver's door is bad, thus it's not recognizing that you've unlocked 
the drivers' door and not telling the vac pump to engage.

Keith L

 >>> "Doug Johnson" <ur-quattro at msn.com> 8/9/2005 9:48 AM >>>
Although all of the other doors on my '86 4KCSQ lock when I lock the
driver's door with the key or by pressing the lock button on the door, none
of the other doors un-lock when I use the key to lock the driver's door or
when I lift the lock button to un-lock the driver's door.

Can someone please direct me to the location of the "source" of vacuum for
the un-lock "circuit" on the doors?

I expect I've got a failure (Read: leak) somewhere before the master vacuum
line branches to the individual doors.

Are my thoughts anywhere close to accurate???

Thanks in advance for your advice!

Regards,

~ Doug

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