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Date:         Mon, 8 May 2000 18:47:30 -0700
Reply-To:     "Keith & Lynn C." <clayard1@NETCOM.CA>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         "Keith & Lynn C." <clayard1@NETCOM.CA>
Subject:      Re: HELP!!!!! stuck idle!
Comments: To: Peter Cassidy <pcassidy@APPLE.COM>
Content-Type: text/plain; charset=us-ascii

Similar problem with my 81, turned out to be the decaration valve. Plugged the vacuum line until I got a new one. Keith

Peter Cassidy wrote:

> >My 88 Wolfsburg GL just got the case of the high > >RPM's! When I put it into Neutral or Park, it shoots > >all the way up to 2200rpm, in drive it hovers around > >1200 RPM. We tried to clean up the Throttle body, > >adjust the switch, adjust to idle, and clean the idle > >stabilizer and nothing works. The funny thing is it > >doesn't even appear able to adjust the CO. I need > >some ideas if you don't mind about what things to do, > >look for....etc. If anyone has a step by step > >procedure, I'd really appreciate it. > > My '88 Wolfie was doing this for a while. Here's what > happened; when the engine heated up & I was stopped at > the lights, the idle speed would creep up and up, > usually to about 1500 RPM but often over 2000. Engine > braking was minimal & the van started bucking when > cruising at 40-50MPH. > > - Checked for air leaks around the throttle switch > and intake plenum. Nope! > > - Checked all vacuum hoses were not sucking air in. > Temporarily disconnected the brake servo lines & > plugged the ends. Nope! > > - Cleaned, then swapped out the AFM. Nope! > > - Unplugged the idle stabiliser valve while the engine > was idling fast. Woohoo - it dropped like a stone > & idled about 800 RPM. > > - Figured it was the idle solenoid. Replaced it with > a second-hand one from German Parts Warehaus in > Rancho Cordova, CA. Idle got slightly better, but was > still bad. > > - Swapped out the replacement solenoid & traded in the > new one for a new idle stabiliser unit (the guys at > German Parts Warehaus were great!). Problem went away > completely!! > > The replacement controller cost $120. It is located behind > the right-hand rear light in a compartment where the intake > air hose goes. Undo three clips & remove the panel & hose. > The box is mounted on a 'holder' & can be slipped out ... > > Pete C > > -- > Peter Cassidy, pcassidy@apple.com > Sr. Test Dev. Engineer +353-21-284316 > WW Operations > Apple, Cork, Ireland.


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