The coolant light will flash if there is not enough coolant in the reserve tank or if the coolant mixture is not right. There should be no air in the reserve tank (or very, very little). Having pressure build up in the overflow tank and air in the reserve tank is not a good thing -- something is building up pressure there. Have your coolant tested for exhaust gases as this could be a sign of a cracked head. When you refill the overflow tank use a mixture of coolant and water not straight water.

Chuck '85 Wolfsburg West - 'Roland the Road Buffalo'

on 5/17/04 8:36 PM, Automatic digest processor at LISTSERV@GERRY.VANAGON.COM wrote:

> Date: Mon, 17 May 2004 17:48:14 -0700 > From: Christopher Dabrowski <chris@MIRAIUSA.COM> > Subject: Cooling Light Q? > > My cooling has been coming on frequently lately. As the engine warms up = > I have no warning light but after about 10 minutes of driving it begins = > flashing. > > I have checked the over flow under the license plate and it has plenty = > of fluid. The reserve tank (requires removing the engine cover for = > access) was above the minimum mark. I released a fair amount of air = > pressure from the overflow tank when I unscrewed the lid. > > I have also noticed that I have been losing cooling fluid as I have had = > to add water a few times over the past few weeks. Recently I let the = > motor sit for a week without running didn't lose any fluid. So I am = > assuming it is only during driving that I am seeing issues. > > Any suggestions? > > Thanks > Chris > '89 Westy