Date:         Sun, 4 Nov 2012 07:52:44 -0500
Reply-To:     Mike B <mbucchino@CHARTER.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Mike B <mbucchino@CHARTER.NET>
Subject:      Re: troubleshooting Audiovox Cruise Control
Comments: To: Larry Alofs <lalofs@GMAIL.COM>
In-Reply-To:  <CA+r=JhpCW=ZSXKm_LbfFnUeZdB9OmBQsU_D78HC53Q45wmLLUg@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

The electric pump in VW / Audi engine compartments is for factory cruise
control only.  The "bi-pressure" two-way pump in a VW/ Audi trunks
(inside a foam package for quiet operation) is for vacuum-operated power
door locks.  Neither of these will work with the  aftermarket cruise
control.

Mike B.


On 11/4/2012 7:23 AM, Larry Alofs wrote:
> If you are installing or troubleshooting a vacuum powered system you should
> realize that late model vanagons have a vacuum pump rather than stealing
> from the intake manifold.  I owned a '91 for a number of years before I
> noticed the pump and realized what it was.  I have found the same pump (in
> the trunk!) of Jettas of similar vintage.
>
> Larry A.
>