Date: Thu, 16 Jul 1998 10:22:55 -0500
Reply-To: ray.wei@US.PWCGLOBAL.COM
Sender: Vanagon Mailing List <Vanagon@vanagon.com>
From: Yi-Ruey Wei <ray.wei@US.PWCGLOBAL.COM>
Subject: Re: '87 Syncro GL scary high idle
Content-type: text/plain; charset=us-ascii
Chris,
My 87 Syncro had similar problem back when it was still under warranty.
The rpm is not as high as yours but the idle was not stable and if I turned
the AC on , the engine will die. The dealer couldn't fix the problem (of
course!). Later a VW regional "manager" spent 2 days, replaced every
possible components which may effect the idle like idle stabilizer, idle
control unit, ECU etc. but in vain. Finally he ordered a whole engine wire
harness and the problem fixed. I believe you may have to go through the
same procedure, replacing these parts one by one. Also, it could be O2
sensor. I don't think you have a sticky accelerator cable or weak spring
since you idle will drop. My 85 GLI has unstable idle too (again not high,
just unstable). I've tried a new idle stabilizer and an used ECU but in
vain. I'll put a new O2 sensor next since it's due.
Good Luck.
Yi-Ruey Wei
87 Vanagon GL Syncro w/leaking cylinder head
85 Jetta GLI w/160,000 miles
Dallas, TX
Chris Wyatt <cwyatt@DINO.GI.ALASKA.EDU> on 07/15/98 08:10:56 PM
Please respond to Chris Wyatt <cwyatt@DINO.GI.ALASKA.EDU>
To: Vanagon@VANAGON.COM
cc:
Subject: '87 Syncro GL scary high idle
Hi Volks,
This morning towards the end of my commute my van suddenly began revving
itself up when I disengaged the clutch or sat in neutral.
It peaks at about 4000 rpm, then settles down again. VROOOM, settle,
VROOOM, settle, VROOOM, settle, you get the idea.
I confirmed that my sandal wasn't caught on the accelerator pedal, causing
the revving. Pretty wacky, as if Dr. Loveless was in the bushes with a
remote control, trying to force me into the intersection. If they're
really out to get you, it's not paranoia.
It has had a steady high idle in the winter, that always goes to normal
once operating temperature is achieved.
I cruised the archives, but didn't find reference to the symptoms I
experienced this morning.
I'd be grateful for any advice. Wish me luck on the drive home.
Cheers,
Chris Wyatt
'87 Syncro GL
Fairbanks, Alaska
########################
Chris Wyatt
User Services Consultant
Alaska SAR Facility
Geophysical Institute
University of Alaska Fairbanks
903 Koyukuk Dr., P.O. Box 757320
Fairbanks, Alaska 99775-7320
Voice: (907) 474-7312
FAX: (907) 474-5195
email: cwyatt@gi.alaska.edu
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