Cruise No Workum

["Al Powell" <APOWELL@agcom.tamu.edu>]

Still fiddling with the cruise on my 1990 200.  I tracked the vacuum 
lines fron the brake pedal switch, and discovered there IS a vacuum 
pump inside the left front fender, just behind the radiator overflow 
tank.  Interestingly enough. that was where a vacuum leak was.  

Has anyone played with the vacuum pump?
There is a large open port next to the vacuum hose coming in - which 
allows air to exit when you blow in, but holds when you pull vacuum 
against it.  I assume that it's an overpressure valve.  But next to 
it is a small port - which has a small hose going to the other side 
of the vacuum pump - where it connects to another small port.  Go 
figure.  Next to the destination for this small hose was ANOTHER open 
port - and it leaked vacuum when I sucked on the hose from the cruise 
actuator end...so I capped it.  I figured it might have had a rubber cap 
which fell off.  Thought plugging that leak might ffix the problem.

But still, I have no cruise!.  And the Bentley has NO troubleshooting 
section for the cruise control, AT ALL.  Frankly, this is all too typical of 
the Bentley.  I know, it's the best we have, but sometimes it has 
GLARING omissions.  Hmmph.

I will go to the electronic diagrams, but I'm not really sure how 
much help they'll be.  I welcome any comments on how to pursue this.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Al Powell                           Voice:  409/845-2807
107 Reed McDonald Bldg.             Fax:    409/862-1202
College Station, TX 77843           Email:  a-powell1@tamu.edu 
W3 page - http://agcomwww.tamu.edu/agcom/satellit/alpage.htm

Saunders' Slant: "If it's worth doing, it's worth hiring someone
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