Ok,  null that call for help.  I got a hold of the service guy and they
had told me it was the high pressure switch that was leaking, but in
fact, it was the low one.  And the switch installed IS the right part
number for the low one.  Funny, all the oil seemed to be leaking from
the rear which would jive with the high, but guess it was just being
blown that way.

So, now to determine why the blasted thing is buzzing.  I think I'll
start with an oil and filter change as I have no idea what weight they
put in.  Guess I'll do it myself this once.

hmm - theory, could the pressure be too high cause the low switch to
start leaking due to the pressure and now that the leak is plugged the
high pressure sensor is seeing it and complaining?

ugh,
thanks to all anyway,
Tonya
87 Vanagon GL Wolfs