Byron,

I had this problem after flushing and filling. It turned out that I had
some air in the line. I re-bleed the system, and presto chango, no more
erratic blinking light. It could be your problem. Many tech's do not
spend the time to bleed all the air out of the system.

Ron Semko
Orlando, Fl.
1984 Vanagon with 200,000 plus miles

Byron MacIntyre wrote:

> The coolant light on my is possessed, it flashes inconsistently,
> some days it flashes constantly, other it turns off as soon
> as the engine runs for a few minutes, other days it doesn't
> come on.  The heads were recently redone and I've had
> it back to the mechanic who assures me that the coolant levels etc.
> are fine and it is operating fine,  any suggestions?
>
> Byron MacIntyre