Thanks to all for the advice on the leaking coolant.  Indeed it was a
cracked coolant level sensor.  I had replaced the reservoir earlier in the
year when doing the water pump, and reused the sensor, since the replacement
reservoir only came with the pressure cap.  Ordered a new sensor last night
through Ken at Vanagain.com and it should be here tomorrow.
    Additionally a public word of thanks to Ken for calling me up this
morning (happened to be home with a sick child) and inquiring about my
recent posts on the ballast resistor for the cooling fan.  He walked me
through the testing of the temp sensor that screws into the radiator and it
seems to be fine (only high speed obtainable from jumping the terminals), so
he is including a resistor in my order.  Ken runs a fine company down there
in southern NJ and he's got my vote for being most in tune with his
customer's needs, as well as prompt, courteous, reachable... (tell me when
to stop)...price competitive...  Thanks Ken

--
Dan Erlandson
Flemington, NJ
> danoer1@eclipse.net
91 VW Vanagon GL 174,000 mi
99 VW Passat 113,000 mi