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.

On Sun, Nov 4, 2012 at 6:11 AM, Mike B <mbucchino@charter.net> wrote:

> I have the same one on my AT '87 Westy.  Is yours newly installed, or
> has this always been a problem since installation?  Mine did this upon
> new installation (by me) and had me puzzled for a while.  I added a
> later model Golf/ Jetta vacuum reservoir along with all the lines and
> vacuum check tee line, trimming everything to length for the Vanagon
> engine bay.  I placed the reservoir in the left space in front of the
> taillight area, retained by the original bungee strap.  This solved the
> issue and I've never had that problem since.  As someone already stated,
> it could be a vacuum leak also.
>
> Mike B.
>
>
>
> On 11/3/2012 10:33 PM, Edward Maglott wrote:
>
>> hello, I have one of the usual aftermarket Audiovox cruise controls
>> on my 86 with AT.  I think it's model CCS-100?  I use the magnet
>> speed sensor kit on my drive shaft.  It's not working well.  It
>> engages briefly and then immediately disengages.  It will then
>> attempt to resume to that speed if I press that button, but
>> immediately disengage.  That makes me think that it is at least
>> remembering the speed I set it to.  I've gone through the
>> troubleshooting of all the wires as the instruction manual specifies,
>> and everything is good.  I'm wondering if I could devise some way to
>> monitor it from the driver's seat to figure out what is going
>> on.  Thanks for any advice.
>>
>> Edward
>>
>