No need to remove the pulley.  Here's an excerpt from the article, for those
who need it now:

"The higher RPM switch is located near the crankshaft pulley.  This one is a
little trickier to get to, but if you remove a couple of belts, and push the
exhaust shield out of the way, you should be able to get a socket on it.  It
helps to use a reducer on your ratchet to make a 1� extension.  This sender
should be 0.9 bar/13.1 psi, and grey in color.  On my most recent vanagon, I
had a Canadian VW factory rebuilt engine, and this sender was the blue one,
rated for roughly double the pressure of the grey one.  No wonder I was
getting a light and buzzer!!"

In other words, I used a 3/8" drive ratchet, 3/8" to 1/2" drive reducer,
1/2" drive socket.  The reducer is a perfect length extension for a standard
socket.  I imagine a deep socket with no extension would work fine as well.
If you can, look at the sender with a small mirror first to see if it's the
wrong color.  Should take about 15 minutes out, 15 minutes in (if that).

Good luck,
bmc  :)

Ben McCafferty
ben@volkscafe.com

Volks Cafe
1823 Soquel Avenue
Santa Cruz, CA  95062
831-426-1244
http://volkscafe.com

> From: Brad Fowler <pod@FLASHMAIL.COM>
> Reply-To: Brad Fowler <pod@FLASHMAIL.COM>
> Date: Mon, 3 Feb 2003 19:48:28 -0800
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Oil light & buzzer
> 
> That doc would be excellent!  I'm new to the list and am going through
> the same thing with my 1986 GL - buzzer comes on after long trips when
> rpms drop.  It's a pain to get to that sensor - even after removing the
> water pump flywheel.
> 
> 
> On Mon, 2003-02-03 at 10:30, Ben McCafferty wrote:
>> Dollars to donuts you have the incorrect oil pressure sender for the >2000
>> RPM range.  It's the one by the water pump and belts, and should be grey
>> (.75-1.05 bar).  You probably have the blue one, which is roughly twice the
>> pressure rating.  You can probably see it with a mirror, but if not, may
>> have to remove it.  I will have an article on the Volks Cafe site later this
>> week which includes, among other things, instructions for getting to this
>> switch without too much headache.
>> tx,
>> bmc  :)
>> Ben McCafferty
>> ben@volkscafe.com
>> 
>> Volks Cafe
>> 1823 Soquel Avenue
>> Santa Cruz, CA  95062
>> 831-426-1244
>> http://volkscafe.com
>> 
>> 
>>> From: Debra Clark <clark10006@COX.NET>
>>> Reply-To: Debra Clark <clark10006@COX.NET>
>>> Date: Mon, 3 Feb 2003 08:01:58 -0800
>>> To: vanagon@GERRY.VANAGON.COM
>>> Subject: Oil light & buzzer
>>> 
>>> The oil light and buzzer came on yesterday after slowing down on an exit
>>> ramp after prolonged 65+mph on the freeway.  This happened once before when
>>> I first got my 90 Multivan.  I changed to 20W50 and it has been fine for a
>>> year.  (By the way, the buzzer stopped shortly and I checked oil, coolant,
>>> etc)
>>> 
>>> I recently had the oil changed and this is the first time I've taken it for
>>> a prolonged stint on the highway.  Could any or all of the following be the
>>> problem:
>>> 
>>> 1) Mechanic used wrong oil.  (Unlikely since he's a great VW mechanic)
>>> 2) The coolant was below minimum line.  (Fixed this)
>>> 3) The oil level was slightly above the max line.  (I checked this after the
>>> oil change and it was right in the center but the engine was only slightly
>>> warmed up)
>>> 4) I added 4 oz. of MMO after oil change to quiet the lifters.  Could this
>>> have affected the oil weight enough?
>>> 
>>> The filter is the right type and the buzzer and light didn't come on during
>>> the return trip.  Any ideas?  Is this just a "vanagon ghost" that will haunt
>>> me off and on?
>>> 
>>> Debra Clark
>>> Santee, California
>>> clark10006@cox.net
>>> ----- Original Message -----
>>> From: "Marc Perdue" <marcperdue@ADELPHIA.NET>
>>> To: <vanagon@GERRY.VANAGON.COM>
>>> Sent: Monday, February 03, 2003 7:07 AM
>>> Subject: Power steering fluid?
>>> 
>>> 
>>>> Stupid question time!  In my '87 Westy's manual, it specifies ATF Dexron
>>> as the
>>>> power steering fluid.  When I went to my FLAPS looking to get some, I
>>> found Type
>>>> II, Type III, and Type F.  Which is appropriate for my van?
>>>> 
>>>> Thanks,
>>>> Marc Perdue
>>