is the Idle Air Control Valve working?  You can kind of hear it humming when
it is working properly.  Unplug it when the motor is surging and see what
happens.

I had the same problem a few years ago. New valve helped out, but unplugging
it worked in the meantime.

Pete
'79 Westy "Aardvark"
'87 Westy "JoesVan"
WWW.Busesbythebeach.org <http://WWW.Busesbythebeach.com>

On Wed, Oct 26, 2011 at 01:17, Nik Maravich <nikmaravich@gmail.com> wrote:

> Hi all
>
> I recently developed a problem that has me stumped.  I have an 87 Vanagon
> GL with the 2.1  When she idles I get a really intense idle surge.  normally
> between 1 and the second line above on on the tach.  Sometimes when I stop
> the idle will remain at almost 2 on the tach before slowing down to normal
> idle speed. Once there it will begin to surge again.  Has anyone experienced
> this problem and if so how did u fix it?  Also at idle it sounds like a
> whistle or a leak somewhere but my friend and I couldn't find it.   Thank u
> in advance