Date: Thu, 10 Feb 2000 14:54:34 -0800
Reply-To: "Johnson, Darrell" <JohnsonD@SYBRONDENTAL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: "Johnson, Darrell" <JohnsonD@SYBRONDENTAL.COM>
Subject: Re: Vanagon Bucking - A Proactive Approach?
Content-Type: text/plain; charset="windows-1252"
Mark,
When I bought my Vanagon I went through the extensive service records kept
by the previous owner and noted that the dealer had installed the harness
kit you mention to correct hesitation-bucking. According to the previous
owner (a friend whom I still work with) it did fix the problem. I have not
had any drivability problems.
I did note that before applying the harness fix the dealer had on a previous
visit changed the fuel filter, plugs, plug wires, rotor-cap, "adjusted the
injection to spec," and added a bottle of injector cleaner to the gas.
I would imagine then a general round of regular prudent tune-up maintenance
would be advised before this application.
Darrell Johnson
'90 Vanagon Carat
Mission Viejo, CA
-----Original Message-----
From: Mark Upton [mailto:vwmark@CONCENTRIC.NET]
Sent: Thursday, February 10, 2000 2:16 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Vanagon Bucking - A Proactive Approach?
I aquired A Technical Bulletin from April 30,1992,It states After driving
for an
extended period of time at a constant speed,the vehicle may,on
occasion,experience a
deterioation of performance which may be accompanied by a hesitation or
surging.
In many cases,after turning off the engine and subsequent re-start or
without having
taken any action,the symptoms disappear.These symptoms may not recur for
several
weeks or months.
Service:To resolve this condition,wire harness Part no.025 906 302,should be
installed.This harness provides improved signal stabilization. remove
electrical
connector from air flow sensor. Install wire harness,Part no.025 906
302,between
main harness connector and air flow sensor connector. This tech bulletin
Subject
was Driveability Complaints.Had anyone heard of this harness being used?
David Maguiness wrote:
> With all the discussion about Vanagon highway hesitation/bucking lately, I
was
> wondering whether appropriate waterboxer components can be checked
routinely,
> possibly as part of a tuneup, to avoid this syndrome before it starts.
>
> In addition, do we have a step-by-step procedure for diagnosing and
solving this
> problem if it occurs? I'm asking this because I'm considering returning to
a
> Vanagon, and experienced this with both of my former Vanagons, a 1981 L
and 1986
> GL.
>
> Thanks in advance for any insight.
>
> David Maguiness
> Indianapolis, Indiana
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