4000S idle stabilizer valve

Tony Hoffman auditony at gmail.com
Thu Oct 27 17:43:36 PDT 2011

1985 Rabbit, Convertible?

There is no reason it should have power, it's only powered when the key is
on. I'd be looking for water in the fusebox, which will indicate a leaking
windshield. If it is a convertible, I know the later ones had glued in
windshields, which you can switch to. Much better than the gasket ones for


On Thu, Oct 27, 2011 at 7:26 PM, Dave Fain <kf21857 at gmail.com> wrote:

> Actually this has to do with a 1985 VW Rabbit but the engine is pretty much
> the same as a 4000S so maybe you guys can help me.  While I was looking for
> the source of a massive oil leak (it was the O ring that goes between the 2
> halves of the oil cooler), the idle stabilizer valve suddenly began
> humming.  The engine was turned off and the only way to get it to quit was
> to pull the plug.  Any idea why this thing would spontaneously turn itself
> on?  We got our first snow night before last and the car stays outside,
> maybe water dripping into a relay or something?  Nothing else electrical
> appears to be turned on.
> thanks,
> Dave
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