Is the Cruise Control Servo/Regualtor Bad?

[Cade Carvell]

Bad Pun...;-)
And I am no where near retirement...So long to go...;-)

Thanks again,


Cade Carvell
National Business Systems, Inc.
Eagan, MN 55121
Office: 651-994-4400

>>> Robert Myers <robert at s-cars.org> 09/11/02 11:03AM >>>
Let's just face it, Cade, life sucks.  :-)  Now retirement, OTOH, is
just
dandy.

At 11:58 AM 9/11/02, you wrote:

>Hmm...sucking on the end of an almost twenty year old vaccum
>system...Yuck...LOL
>Thought of that, I may end up trying it out, today.
>
>Thanks,
>
>
>Cade Carvell
>National Business Systems, Inc.
>Eagan, MN 55121
>Office: 651-994-4400
>
> >>> Robert Myers <robert at s-cars.org> 09/11/02 10:44AM >>>
>At 11:32 AM 9/11/02, you wrote:
>
> >But, If I bypass the entire vaccum system, wouldn't that tell me if
>the
> >pump is bad?  Ie straight off the suction end should have descent
> >suction correct?
>
>You might think so but I'm not sure just what pressure this system
runs
>
>at.  If it operates at a low level vacuum (relative to ambient, not a
>low
>absolute pressure) then there might appear to have very little "suck"
>while
>still providing adequate vacuum for the system to function if there
are
>no
>other leaks.
>
>I'd still suggest checking the hoses before spending a lot of time
and
>
>money replacing parts.
>
>Hey, how about this?  Try sucking with your mouth on the end of the
>hose
>where it attaches to the pump.  If the system is tight then it should
>feel
>more or less like sucking on a soda straw with your finger over the
>other
>end.  If you don't feel that resistance then you have a leak
>somewhere.
>
>
>
> >Thanks,
> >
> >
> >Cade Carvell
> >National Business Systems, Inc.
> >Eagan, MN 55121
> >Office: 651-994-4400
> >
> > >>> Robert Myers <robert at s-cars.org> 09/11/02 10:20AM >>>
> >The usual cause for inoperative cruise control is a vacuum leak.
>Take
> >a
> >look at the vacuum switches mounted above the brake and clutch
> >pedals.  Look for broken/split/missing hoses.  Also, these same
hoses
> >extend into the engine compartment.  Check their condition there
>also.
> >
> >Good luck - replacing a section of hose beats the living daylights
>out
> >of
> >replacing anything else related to this system.
> >
> >At 10:53 AM 9/11/02, you wrote:
> >
> > >Hi,
> > >   I am still getting the hang of Audi.  While I am waiting for
my
> > >manual to arrive, could some one tell me if what I did proves
that
> >the
> > >Cruise control servo is bad.  The problem, is well, it doesn't
>engage
> >at
> > >all.
> > >   I unhooked the Cruise control servo/reg harness (three wire
> >harness)
> > >from the module.  I took a pair of 12V leads and touched the Top
>and
> >the
> > >left pins.  This caused the motor to run.  I took the Vaccum lead
> >from
> > >the Cruise diagphram, and attached it directly to the port on the
> >cruise
> > >servo/reg.  So it was now stright from the port to the tube, to
an
> >open
> > >end.
> > >   While having the motor run, I noticed that I recieved no
vaccum
>on
> > >the end of the hose.  It wouldn't even hold a piece of paper up (
a
> > >small scrap).  I would then surmise that the vaccum pump is bad,
> > >therefore needs to be replaced.
> > >
> > >   Is this correct, or does this pump run a lower then 12V
current?
> >Is
> > >there some other test I should do, to make sure before replacing
>that
> > >this is really bad.
> > >
> > >Sorry for the long post, Just trying to make sure I get all the
> >details
> > >correct.
> > >
> > >1987 Audi Qauttro 4000, 62,000 miles
> > >
> > >Thanks,
> > >
> > >
> > >
> > >Cade Carvell
> > >National Business Systems, Inc.
> > >Eagan, MN 55121
> > >Office: 651-994-4400
> > >
> > >
> > >
> > >
> > >---
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> >
> >Bob
> >*****
> >   Robert L. Myers   304-574-2372
> >   Rt. 4, Box 57,  Fayetteville, WV 25840 USA   WV tag Q SHIP
> >   '95 urS6  Cashmere Grey - der Wunderwagen    ICQ 22170244
> >   http://www.cob-net.org/church/pvcob.htm
> >*****
> >
> >
> >
> >
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>Bob
>*****
>   Robert L. Myers   304-574-2372
>   Rt. 4, Box 57,  Fayetteville, WV 25840 USA   WV tag Q SHIP
>   '95 urS6  Cashmere Grey - der Wunderwagen    ICQ 22170244
>   http://www.cob-net.org/church/pvcob.htm
>*****
>
>
>
>
>
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Bob
*****
  Robert L. Myers   304-574-2372
  Rt. 4, Box 57,  Fayetteville, WV 25840 USA   WV tag Q SHIP
  '95 urS6  Cashmere Grey - der Wunderwagen    ICQ 22170244
  http://www.cob-net.org/church/pvcob.htm
*****