If no fault is found with the wire I'll try Marvel Mystery Oil. It's great
stuff with noisy lifters. Thanks. Think that I'll go lay on the wet ground
and  check out the wire now. Gotta get her running without the buzzer
again-it's  killing me to think that I may have an oil pressure issue, sure hope
not.

David

In a message dated 8/1/2010 2:24:41 P.M. Eastern Daylight Time,
zolo@FOXINTERNET.NET writes:

At that  speed does the high pressure switch start working.  Or not.   This
time did not work.
Grounded wire,
Faulty switch,
Low oil  pressure, (most unlikely)

Sometimes a cupful of Marvel Mystery oil  would get the switch work again.
Mostly not.
Zoltan

-----  Original Message -----
From: "Larry Alofs" <lalofs@GMAIL.COM>
To:  <vanagon@GERRY.VANAGON.COM>
Sent: Sunday, August 01, 2010 10:28  AM
Subject: Re: Oil pressure light and buzzer-Arrgh!

If it goes  off only at rpms>2200, the engine tin should not be
involved.  The  high speed sensor is at the rear of the engine near the
crank pulley.   Check the wire connecting to it and then check whether
it provides a  connection to ground which changes with engine speed.

Larry  A.

On Sun, Aug 1, 2010 at 12:55 PM, David Clarkson  <Dvdclarksn@aol.com> wrote:
> Time for some diagnostic work I'm  afraid. In my ten years of owning my 90
> Westy I have never had this  warning activate. It went off just yards from
> my
> driveway  fortunately (thank you Van Gods). I checked it again this
morning
> and  it does magically activate at 2200 RPM's. I have perused that
Archives
>  and will set out to check all of the wiring and also for leaks at the
>  sensors. Of course, I have 15w-40 Mobil 1, correct oil level , Mahle
>  filter and
> no apparent issues with the oil itself. Quick check doesn't  show any
> corrosion at the connector that splits off the wiring to each  of the
> sensors.
> Not looking forward to possible removal of  exhaust nuts to remove the
> engine
> tin. I have had some sort of  slow oil leak from behind this tin so I'll
> check this too. Wonder  could it be a leaking sensor? I had the van up on
a
> lift cleaning off  dye in the AC for a known leak at one of the condenser
> connections  (another frustrating problem now secondary to this
frightening
>  issue
> ) then after driving about 15 miles home it went off and my  heart sank.
> Just don't have the money in the budget for the Subi 2.5  transplant yet.
> The
> only other likely possibility not near the  engine area that might explain
> this issue is the sometimes problematic  14 point ribbon connection at the
> speedo that is very fragile with a  broken corner of the plastic that the
> ribbon folds over and the  connector slips on to. According to the
archives
> this
>  connector carries the wiring from the sensors. Guess its time to get  her
> up on ramps (don't want to drive back to work to use the lift  should I
> have
> a true oil pressure issue) and scrape the  knuckles and try not to use my
> outside cursing voice. The engine was  rebuilt about 100,000 miles ago by
> The
> Bug Shop in Blacksburg,  Va. -Plug for the Bug Shop and Jewel the
> owner-excellent rebuild IMHO.  It was broken in on conventional Dino oil
> for the first
> 10,000  miles and then nothing but 15-40 Mobil One. Oil changed every
7,000
>  miles and filter change every 3500 miles. I'll report back on my
findings.
> Got to have her ready for the trip to the Outer Banks  without breaking
the
> bank in two  weeks.
>
>
>
> David Clarkson
> 1990  Westfalia
>

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