Date: Thu, 20 Apr 2006 12:01:22 -0400
Reply-To: dhaynes@OPTONLINE.NET
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <dhaynes@OPTONLINE.NET>
Subject: Re: Sudden Loss of Power
In-Reply-To: <a172f66c0604200806y25f66576o4bd0dda28c5b6558@mail.gmail.com>
Content-type: text/plain; charset=us-ascii
When the power loss is occurring, quickly turn the ignition off and then back on. If power resumes and things appear OK for 30 seconds to one minute, then the problem is most likely the O2 sensor circuit. Check the archives. It may also be the Vanagon Air flow meter resonance problem but I am willing to bet O2 sensor or wiring.
Dennis
----- Original Message -----
From: david evans <milder60@GMAIL.COM>
Date: Thursday, April 20, 2006 11:06 am
Subject: Sudden Loss of Power
> Hi everyone,
>
> Well I was having idle problems on my 87 westfalia (auto) where my
> rpmswould drop while driving and the engine would 'chug' along,
> seem to work
> something through it's system and be fine again for a few minutes.
> At one
> point it chugged and chugged and chugged and then BANG! A massive
> backfireand a giant hole in my muffler. I decided it was time to
> take my now very,
> very loud van to my mechanic.
> I took it to my mechanic who
> -replaced the air filter
> -replaced the fuel filter
> -replaced throttle switch
> -replaced the rotor
> -replaced the distributor cap
> -replaced the muffler
>
> On my (now quiet) drive home, driving up a hill about 10 minutes
> from the
> mechanics the van suddenly lost power and regained it again. It
> happenedtwice more on that trip. I took it back to the mechanic
> who took 1.5hrs and
> couldn't determine the cause as it was very intermitent, but
> cleaned up some
> connections in hopes that it would fix it. He suggested that I
> run a few
> tanks of high octane gas though it. Later that day I drove the
> van to work
> and this problem happened some more. On my way home (once warmed
> up) it
> happened much, much more and would cut out every few seconds. For
> every 3
> seconds of gas I would get 1 second of power, so I'm getting
> whiplash as I
> drive. During my stop times the rpms idle at 1000 and suddenly
> jump up to
> 1300 or so like a nervous twitch and then back. This is most
> certainly a
> problem that I did not have before I took it to my mechanic (or it was
> hidden by the initial problem). Now while I appreciate him taking
> 1.5 hours
> for free to recheck their work I'm not terribly happy about having
> a car in
> worse condition than when I brought it in.
>
> Any thoughts on what it might be and should I take it back to this
> person or
> get a second opinion elsewhere?
>
> Cheers,
>
> Dave
>
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