The most basic check is to make sure the radiator fan is working. If it
is staying cold on the highway, that indicates a defective or missing
thermostat. Get this fixed pronto. Not warming up and regular
temperature swings are surefire methods to ruin the engine.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf
Of Veronica Fraga
Sent: Saturday, April 19, 2003 8:50 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Overheating during idling

Can anyone offer advice on the cause of overheating
during idling?  My 87 Syncro runs very cold on the
highway, but overheated today during a smog check, and
I've noticed that the temperature guage starts to rise
at long stop lights as well.  Thanks!

Vee
87 Syncro Westy
85 Adventurewagen

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