First, You have to fix the fan. The High speed is there in case low
speed does not do the job which should never happen. The problem is
probably the fan resistor. See the archives.

Next time the low coolant light comes on, pull over and check the
coolant level in the main expansion tank, (the one with the pressure
cap). If the level is down then it is possible that combustion gasses
are getting into the cooling system and pushing the coolant below the
sensor probes. Also check to see if bubbles are forming in the tank
behind the license, if so, you have a problem developing.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf
Of Chris
Sent: Sunday, May 04, 2003 7:57 PM
To: vanagon@GERRY.VANAGON.COM
Subject: [Q] coolant light blinking/heating problem?

Hello Vana-guru's,

I have a 90' westy. recently I went on a trip of 3,500
miles. Now my coolant light, the red LED in the temp
gauge, blinks seemingly randomly and excessively.

I have taken the van into a reputable repair-shop in
my area. They replaced the gauge and un-hooked
everything that they thought may cause such a problem.
They claim that the problem is benign. They say that
there must be some interference between something...
an "electrical ghost"

Has anyone ever encountered such a problem? or does
any one have any ideas as to what could be happening?

My coolant level is fine. My car is running hotter
than normal when in stop-light heavy city areas. When
the fan kicks on, it now KICKS on. It's very loud.
I've been told that this is the high position. before
these problems it would kick on in low, and it would
kick on before the temp gauge climbed so high [second
line before the top of the gauge]. Is this high of a
temperature reading a bad thing?

Thanks for any help!

=chris
90'westy
new to vanagon's, old to vw's.

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