We dealt with this problem too soon after installing a rebuilt engine.  The
first time, the pressure switch wires on the engine came in contact with the
exhaust header, melted the insulation and grounded out.  Second time the
wire simply fell off of the pressure switch at the rear of the engine.
Discovered after reconnecting that the plug wasn't squeezing hard enough to
make a good contact even when reconnected.  Took the little plastic cover
off of the plug and gave it a squeeze with pliers to tighten it up.  Been
quiet ever since.

Gary
----- Original Message -----
From: John Iseman <JIseman457@aol.com>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Saturday, August 12, 2000 1:20 AM
Subject: OIL LIGHT AND BUZZER

>      My 1991 VANAGON with 84,000 on the clock has been struck with the oil
> buzzer/light malady.
>
>       I have replaced the Fram filter with a Mann filter and replaced both
> pressure sensors. The problem remains, ie. after about 30 minutes of
driving
> I wll get the ligth and buzzer at highway speed. Sometimes it will stay on
> until the engine is shut off; other times it will stay on for only a few
> seconds. Occasionally I can get it to go off for a few seconds by
switching
> on or off the high beam lights.
>
>        My mechanic and I are frustrated. Any ideas on what is going on ?
>
>                               JIseman457@aol.com
>