The cooling system is *always* under pressure when the engine is warm / hot.

You can take it to a radiator shop and get them to pressurize the system
when it is cold and listen for the sound of air/water bubbles escaping....

David Marshall

Fast Forward Autobahn Sport Tuning
4356 Quesnel Hixon Road
Quesnel BC Canada  V2J 6Z3
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-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf
Of Paul M. Hillbish
Sent: December 10, 2000 1:03 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Another Jetta question

In a message dated 12/10/00 4:00:58 AM Eastern Standard Time, Sersote
writes:

<< In a message dated 12/9/00 11:02:36 PM Eastern Standard Time,
vanagon@volkswagen.org writes:

 << Looks like you have a small hole in your radiator. >>

 Is there a way to test for leaks? It seems that it would not do it unless
it
is under high pressure, which means it would be hot. That would be a likely
cause, but it would turn to steam as soon as it touches the metal. I had to
run out earlier tonight, and I looked again. It seems that the whole side is
steaming, and I am not able to pinpoint a single spot. Should I try some
stop
leak?

 --Paul--