Disconnect the clip on the end of the idle stabilizer valve, start the
engine and rev it enough to keep it running. Allow it to warm up, pat
the gas pedal to allow the WBX to clear it's throat, and then let the
engine drop to idle and watch what happens. If it stabilizes at normal
idle speed, then you have a problem in the stabilizer circuits.

Regards,

John Rodgers
88 GL Driver

Adam Butler wrote:
> Fellow List Members,
>
>    I have been watching and learning for some time, thanks for all the
> great ideas, and support. This morning on my way to work in my 1988
> Westfalia 2.1, recent Head Work and new Transmission. Say 5-10 minutes
> after
> starting the motor from sitting all night, I begin to idle near 4,000
> RPM.
> What could it be to make this happen all of a sudden. We did get some
> rain
> here in Austin, a buddy at work said it could be related but i dunno. I
> wanted to get your inuput.
>
>    What should I check, I am not your advanced mechanic but I am a
> technical guy, rebuilt motors (yes they ran afterwards, well most of
> them...), yanked them out put them in etc... your input is greatly
> apreciated.
>
> Adam
> 1988 Vanagon Westfalia GL
>
>