I had the same problem a couple weeks ago. The switch was dead and I
replaced it with a switch that I took from my old microwave oven. Total cost
of the repair: 0 buck.

Good luck

Mathieu
86 weekender

>From: Keith Adams <lkadams@TELUSPLANET.NET>
>Reply-To: Keith Adams <lkadams@TELUSPLANET.NET>
>To: vanagon@GERRY.VANAGON.COM
>Subject: Re: High Idle 1987 GL
>Date: Sun, 20 Jan 2002 15:56:13 -0700
>
>>Like others, several years ago my 87 GL stopped idling in the 850 +/- 50
>>range that Bentley suggests and started idling around 1200 RPM's during
>>the
>>colder months of the year.
>
>Brad,
>
>I will relate my experiences to you in hopes that it helps.
>
>My 86 pulled the same trick last year.  Idling at 1800 rpm.  Not bad -
>until I took a road trip from Calgary to Seattle in January.  The
>warmer, denser air of Seattle made it idle at 2800 rpm.
>
>My problem was the idle position switch on the underside of the throttle
>body.  It seems the van would idle fine when cold, but once warmed up,
>it would idle high.  This switch, once nice and warm, the contacts would
>expand as all metals do and no longer made contact.
>
>The trick to see if this is what is causing your problem is one of two
>things.  Once your engine is warmed up and it's idling high, with the
>engine lid off, give the throttle (the rotating piece where the
>accelerator cable attaches) a push back to the fully closed position (I
>think that is counter clockwise).  Although my throttle was closed, the
>little extra "oomph" would close the idle switch.  The other way to try
>to see if this is the problem (this one is more tricky, but can be done
>while you're driving around) is to give the accelerator pedal (I think
>that's a misnomer in a Vanagon!!!) a quick stab and slide your foot off
>the pedal and let it SNAP back to rest.  This, in my case, you knock the
>switch closed, and give me a normal idle.
>
>With my engine cold and the engine off, I could rotate my throttle and
>hear the wide open throttle (WOT) switch click, and I could hear the
>idle switch click when it came back to rest.  However, with a hot
>engine, the idle switch would no longer click.  Frustrating.
>
>I took my switch apart and cleaned it and recurved the contacts, but it
>doesn't seem to have fixed it.  I'm afraid I'm just going to have to
>bite the bullet and buy a new switch.
>
>Please let me know if that helps or you need clarification.
>Keith Adams
>Calgary, AB, CA || http://www.clubveedub.com
>86 Westy "Roxy" || 87 Syncro "Hugh"

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