After pondering everything and making sure there was coolant filled to
the brim of the expansion tank (which it was), cleaning the coolant
sensor and checking it's o-ring and snugging it back down with some
ATV.....

I began thinking that everything seemed to not go well after I had bled
the coolant this last time and didn't really bleed it as long as I had
previously from the radiator bleed screw on the front.  Then I lost a
tiny bit when I removed/installed the new thermo/temp switch on the
radiator (this could have put air in the system as well).  But the
coolant level is certainly NOT LOW and hasn't been and so it might just
be THAT, air in the coolant system!

So I'm gonna bleed the air one more time to see if this gets it and let
it flow from the screw in front for a longer period of time and see if
that gets it. :o)
I've ordered a new sensor just in case the sensor could be defective.

Thanks everyone, I appreciate it!
Peace, Love & VW Grease,
Sunshine (Greasy VW Wrenchin' Woman in Kansas) :o)
~~~~~~
'89 Vanagon GL - Wolfsburg Weekender Edition ("Stella Blue") *Daily
Driver*
'87 Vanagon GL ("Parts Van")
'77 Westfalia Bus ("Sunshine Daydream")
'74 Transporter Bus ("Buddy")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If your coolant light is flashing either the coolant sensor is bad,
the coolant is low, or there is air in the system.
Regarding the buzzing, I may be wrong, but I seem to remember that my
87 GL would buzz when the coolant was low.  But that's been several
years and so I'm not entirely sure.