There are 3 main possible causes of your specific problem and a few less
likely ones. It would take more time than I am willing to spend right
now to explain them all. You need to do ONE SIMPLE thing to eliminate
one or two of the main possibilities.

Remove the coolant level warning relay from the main relay panel of
86-91 models. It will have a 43 or 42 stamped on the end facing
you.Simply note where it is and pull it out towards you. Then see if
your symptoms change. Let us know.

Mark

David Clarkson wrote:
> Does anyone on the list have an explanation as to why the light will
> only blink on cold startup in cold weather onl and will often only stop
> blinking after several stop/restarts. I have searched the web and found
> a variety of theories but none pertaining to my specific symptoms.
> Thanks all.
>
> David Clarkson
> 90 Westy
> 266k