Date: Mon, 12 Nov 2007 17:03:21 -0500
Reply-To: Billy Hirt <zbillman@COMCAST.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Billy Hirt <zbillman@COMCAST.NET>
Subject: Re: 1.9L itermittent stalling at random
In-Reply-To: <248110.51292.qm@web38207.mail.mud.yahoo.com>
Content-Type: text/plain; charset=ISO-8859-1
Hi Brian,
I also have an 84 1.9 manufactured in 10/83 and I had a very similar
problem a few years ago. The thing seemed at first like it was
happening only on moist days. It would happen from time to time while
driving down the road after awhile and then start to buck and quit all
together most times. I'd pull off the road and try to restart.
Sometimes with immediate success sometimes it took some time and tlc.
After doing almost verbatim what you have done plus a few other
things. Cleaned out my fuel tank, did the rebuild for fear it was
sucking air. What I ended up finding after almost a year and a ton of
frustration was a bad coil wire. It was only 2 years old and a Bosch.
I found it at random on one of the stall outs. The end was partially
broken off under the boot at the Distributer. I cut the end off,
stabbed the wire onto the pin in the hole and taped it up. The bus
ran incredible the rest of the way home. I sent the wire back to
Bosch and they replaced it but less than a year later I was having
trouble again and the other end had broken. Now I use STI/Bremi wires
and have had no issues at all for over a year now. I hope this may
help you out or help someone out down the road.
Billy Hirt
On Nov 12, 2007 1:39 PM, Steven Smith <kewsps@yahoo.com> wrote:
> Brian,
> Sometimes I suspect my Idle switch is shorting out on damp days as the engine will stall and surge at random times, as if the switch is out of adjustment. Never been able to verify this though. I have and '84 1.9 as well.
> Distributor electronics can short out randomly and cause this as well.
> Good luck!
> Steven
>
> Brian Jarvinen <brianvwagain@YAHOO.COM> wrote:
> well it's that time again. I've been through this
> before
> but have to work through it again. the fuel seems to
> cut out at seemingly random times.
>
> I tried to do some archive searches about my questions
> but on dial-up that is very frustrating.
>
> My Westy is an 84 1.9L
> manufactured 12/83; I also have an extra
> Vanagon manufactured 11/83 that I've mostly
> finished parting out and using for spares.
>
> but something is cutting off the fuel seemingly
> at random. first symptoms appeared on rainy
> days but we've had a lot of those and I don't
> think an exposed wire getting moist is the
> culprit because the symptoms started again
> on a warm sunny day this weekend.
>
> Checked so far -
>
> all grounds cleaned, di-electric greased, sealed
> with wire-dryer spray.
>
> fuel filter changed.
>
> temp-sensor II - about two years old. but
> van can run perfectly when fully warmed for
> long periods, then start the herky-jerkys.
> previous experience with this sensor going
> bad was much different but I guess still
> possible. haven't tested it with slowly
> warming water yet.
>
> fuel pump relays - seem solid. have had
> these cause this problem in the past, detectable
> when ever hitting a bump in the road. also
> when the inside of the relay rattles a little bit.
> swapped one out anyway, no change.
>
> fuel pump - pressurizes normally on
> start up. I never hear it make the re-pressurization
> sound again after that. but it is the original
> pump ... 24 years, 250K miles...
>
> so question 1 - what are the symptoms
> of a fuel pump going bad?
>
> fuel pressure regulator - I could test this, I
> have in the past with the little port at the
> fuel-line T, but testing for this is...what
> if when I test it, everything is working just
> exactly perfect? I wouldn't think a regulator
> problem would be so random.
>
> the coil - actually swapped this out for
> other reasons. an educational experience
> I will write about in another post, perhaps
> it will help someone else. no change in symptoms.
>
> ahhh, the air sensors - I can test these with
> the box off, per Bentley, and all tests show
> correctly. again testing can only reveal
> so much - sometimes the van runs perfectly
> for 20 minutes at a time. what if I am
> testing when the sensor arm is on the right spot?
>
> so question 2 - what are the symptoms of
> these sensors flaking out?
>
> I'm leaning towards just replacing the
> air sensors. unfortunately I already gave away
> my extra air box I think, can't find my extra
> one anywhere. but at $150 and several days
> shipping, I keep hoping I can find something
> simpler to try next.
>
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