My 87 westy's coolant temperature gauge warning light has been
flashing.  After about 45 freeway miles, the light began flashing.  I
pulled over, checked the coolant levels and v-belt and the fan,  all was
seems fine.  The needle on the temp gauge was not riding past the half
way point.  I don't think the engine was overheating.  Is there a
sensory component that could be haywire?  As soon as I turn off/restart
the engine, the light stops blinking for about 45-100 miles.  Any
suggestions would be appreciated.

Thanks
Brett Ellingson
87 westy