Yesterday after replacing the spark plug leads in my '87 Vanagon
(that's ALL I did; one was arcing to the block causing the cylinder to
cutout occassionally) I jumped into the van, pulled away ... and the
oil light/buzzer tripped (the first time its every done this). Since
it went around 2000rpm, I assume it was the high pressure switch that
triggered it. Once it tripped it didn't go off, and it went on *every*
time I exceeded 2000rpms.

Checked the oil, everything was OK. Temperature was fine ... in fact,
everything seemed fine. I parked it and decided to worry about it
tomorrow.

Today I got in, fired it up, took off and ... no buzzer. I ran it
around town for about 10 minutes, including some interstate travel,
getting the rpms up around 4000 several times ... nothing!

I parked it for about 10 minutes, then took off, and suddenly I get
the buzzer again, right over 2000rpms. But this time it goes on for
about 2 seconds, then goes off, even if I don't reduce the rpms. This
pattern is repeated for the entire trip around town. Sometimes I can
go several minutes without it going off, sometimes it'll go off
several times in a single minute. However, on my way home tonight
(starting off with the engine totally cold) it was silent the whole
way (about a 15 minute drive). Weird.

Anybody have any thoughts as to what is going on here?

dan
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Dan Resler                            email: dresler@vcu.edu
Dept. of Mathematical Sciences
Virginia Commonwealth University
Richmond, VA 23284-2014 USA