I doubt that the fan was never wired to work with the AC on. The fan
uses a resistor to provide multiple speeds for the radiator fan. The AC
should operate the fan at the lowest speed. 1st stage cooling should
bring on a slightly faster speed. High AC head pressure or engine second
stage cooling operates the fan at the speed which makes things vibrate.
The resistor is a common failure item. It is located behind the drivers
side head light.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
Of Ray Reinhard
Sent: Tuesday, April 16, 2002 6:33 PM
To: vanagon@GERRY.VANAGON.COM
Subject: A/C Engine Fan Vibration

Hi all,

We have had our van since 1990.  Over the years, I have invested a small
fortune (I'm ashamed to admit how much) in trying to get the A/C to work
properly.  On my most recent trip to the A/C repair shop, they
determined
that the front engine fan had never been wired in to work w/ the A/C
unit.  (Apparently, it took them 12 years to figure this out!)

The good news is that the unit now seems to be working properly, and the
temperature control (circular switch surrounding fan switch) actually
does
something for the first time since we've had the van.  Specifically, it
regulates the frequency with which the engine fan and compressor turn
on.  The bad news is that, when the front engine fan and compressor turn
on, the dashboard and pedals vibrate like one of those "Magic Fingers"
beds.

Any suggestions on how to dampen the vibration would be much
appreciated!

Ray Reinhard
'86 Westy Camper GL