You could have an air bubble trapped somewhere in the cooling system and
it affects the coolant level over time. But if the coolant level is
normal, then you are probably experiencing the approaching failure of
the coolant level sensor, the little gizmo that screws into the top of
the expansion tank (on the left side of the engine compartment). Also a
possibility is your water/antifreeze ratio is out of whack. Have it
tested. Bentley specs calls for 50/50 water/antifreeze mix. If it gets
very far from the mark either way the light tends to come on.

Good luck in locating the problem.

John Rodgers
88 GL Driver

Brett Ellingson wrote:
>
> 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