Date:         Fri, 2 Apr 2004 16:26:51 -0500
Reply-To:     eric unrau <eunrau@YAHOO.CA>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         eric unrau <eunrau@YAHOO.CA>
Subject:      Random Oil Buzzer
Content-Type: text/plain; charset=us-ascii

Hi All.

I have had a few oil pressure warnings on my '89 Westy
lately.  The first time it happened I shut off the
ignition, coasted into a parking spot and checked the
oil.  Everything looked OK so I started the engine,
the buzzer came on immediately - below 2000RPM and
above 2000RPM the buzzer sounded steadily - so I shut
the engine off for a few minutes and tried again.
This time there was no buzzing or lights flashing so I
turned around and drove home - about 10km - and
changed the oil and filter that night.

The next time I used the van, a few days later, I went
for a 50km drive without incident and thought that
somehow the oil or filter change had solved the
problem.  A few more drives without incident made me
believe that the problem had disappeared, until a
rainy night last week when the buzzer turner on and
off repeatedly.  It was then that I remembered that
every buzzer incident occurred on a damp or rainy day,
so I had a look at the wires that run to the oil
pressure sensors and sure enough there are a couple of
spots where the insulation is very worn.  I'm guessing
that the sensor wire isn't worn enough to ground out
on the engine all the time, but when it gets wet the
circuit closes.  Does this seem like a resonable
diagnosis?

Either way, I'd like to replace these wires.  How do
you get at the high pressure sensor?  Do you have to
remove the water pump pulley?

Eric

'89 Westy
Vancouver, BC


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