[urq] Cruise Control

[fdekat]

> 
> Message: 1
> Date: Tue, 20 Jul 2010 10:22:19 -0600
> From: "Brandon Rogers" <brogers at terrix.com>
> Subject: [urq] Cruise Control
> To: <urq at audifans.com>
> Message-ID: <6EA21E9AA67C4ACFB175F3C2931563BE at BCROGERS>
> Content-Type: text/plain;	charset="us-ascii"
> 
> Guys-
> While I'm thinking about getting my car ready for the Vegas GTG in October
-
> I have plenty to do - one of the things is the cruise control.  It sets
fine
> - but then speed drops slowly.  It's been quite a whiel sinece I tried to
> use but my recollection is that it hodl speed, then lets up and speed
drops,
> then tries again and then lets up and speed drops.  Cumulative effect the
> speed drops.  I think I've put a mighty vac on the whole sustem and it
held.
> I've swapped in a number of pumps, too.  What else would it be?


Certainly, a wavering speedo can't help, and neither do leaky vaccum
connections. THey should be able to hold a good Mityvac vaccum for a whiel,
without leaking.  But if a wavering speedo, you shoudl be able to at least
set teh speed, and your flakieness would correspond with the speed changes of
teh speedo.

Other than your wavering speedo (which I do NOT have), you describe *exactly*
symptoms that I was having.  In fact, my situation got so bad that I couldn't
even SET the speed. Trying to set would sort of hold the speed, but as soon
as you let go, speed would drop.  In the past the problem would come and go,
and swapping control modules made no difference.

My cruise 'control module' was already loose (they live  in behind the center
console, sort of down behind the radio), so I tried to pull it out to
replace. Couln't get it out the one side, so gave up for a bit. 

However.. After wrestling  with it for that bit, I tried it again, and it
worked *perfectly*!  After a bit, it started to exhibit it's tricks again, so
i wiggled the loose control box around a bit (while driving), and proper
operation resumed.

No detirmination of root cause, but must have be bad/flaky wiring in the area
of the connector to the module. Still working fine.. 


So, can't give you a  *real* solution, but your symptoms matched exactly.

=Frank=