Burp tank!
Now that is a new term. The only resistance you should measure is that of
the coolant itself. No coolant, resistance should be near infinite. Most
false triggers of the warning light circuit are not the fault of the sensor.
First step is to remove the coolant sensor control from the relay panel.
Ignition on the light should flash for a few seconds and turn off. If it
stays on then the problem most likely is the dash panel.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Gilles H Turmel
Sent: Monday, May 24, 2010 9:55 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Blinking coolant level light

Hi,
What resistance should I measure between the 2 pins of the burp tank sensor?
The light is always blinking and the coolant level is OK an the temp is OK.
Best regards.