----- Original Message -----
From: Karl F. Bloss <bloss@ENTER.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Friday, September 24, 1999 11:44 AM
Subject: Re: Expansion tank leak

> > Many thanks to Stuart, Joel, Tom, Howard, Karl, John, and Sean for their
> > advice on our cooling system problems.  "Hoppin' John" is no longer
> > suffering from red light flicker, post-reservoir drip, or hot flashes.
>
> So what was the fix?  That's the interesting part.  :-)
>
> -Karl  (Dunno if it was this Karl that helped)
>
>
The expansion tank was leaking (but full) and the temp warning light was
flickering--even at a cold start.

We were advised that the coolant sensor is very sensitive to the
coolant/water mix.  Also that water leaking on the sensor can cause it to
malfunction.

We replaced the expansion tank and seal and added more antifreeze to the
coolant.  Nothing drastic and only $32 for parts.  But everything is back to
normal.  Probably should order a new sensor too, though.