Hi all,

My '87 Westy auto is having the problem wherein the oil buzzer and
light come on after about 15 minutes of driving when the RPMs drop
below around 2500 RPMs. I've had the oil pressure checked and it is
fine. A friend of mine is having the identical problem. Is the high
pressure oil pressure switch, part number 068919081A, the culprit
here? I checked the archives and it appeared that there may have been
a problem with some of them being too sensitive or something...? I'm
trying to find the right part get this sorted out. My friend is about
ready to take a hammer to his buzzer . . . Mine is going to be fixed
by the guy who rebuilt the engine. He says he got a bad batch of
switches. I'm just trying to find which is the right part for my
friend to order . . .

My van has a newly rebuilt engine and is running Pennzoil 10w-30. I've
never run less than 20w-50 in it and never had this problem, but the
guy who built the engine swears that the pressure is fine and this
weight of oil should be fine, that it's a faulty oil pressure switch.

My friend is running 15w-50, I think, and has a fairly fresh engine as
well. I suspect, but do not know for sure, that his oil pressure is
fine.

Bus Depot has this one:
http://www.busdepot.com/068919081a
Is this the right switch to fix this problem?

Thanks,
Marc Perdue