Fwd: Re: Is the Cruise Control Servo/Regualtor Bad?

[Cade Carvell]

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?

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
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