Date: Fri, 25 May 2001 09:23:08 -0400
Reply-To: Justin Wolfe <wolfe@LISAIUS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Justin Wolfe <wolfe@LISAIUS.COM>
Subject: Re: Engine trouble?
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My problems seems to consist of a couple things that I have been fighting
with on and off for the past two years. It always has to do with this jutter
(which I may add that it use to be bucking on the highway, but with my foot
on the gas) That problem has dissipated somehow. Then it developed a
constant stall out when ever I came to a stop. That was fixed when my
mechanic unplugged one of the wires to the brain last summer. (I have never
stalled out again) Now I'm down to 2 problems that seem to go hand in hand.
1) When I start the van and leave it in idle the idle is not consistent
almost sputtering and then the engine will cut out. 2) This guttering or
slight bucking I get when applying the gas. This problem will not correct
itself until I pull over turn the engine off and start up again. Then if I'm
lucky it won't happen until the next time I start the van or it won't happen
at all. It is this inconsistancy that drive myself and my mechanic crazy.
Any insight?
thanks
justin
'84 Westy
Auto Trans
John Rodgers wrote:
> Justin, I don't remember if I have responded to your requst or not, but
> may I ask for a better description of this "juttering" action you are
> getting?
>
> I was having what I describe as "bucking" with my vanagon. It was like a
> highspeed "gas on/gas off" action that would occur when I would take my
> foot of the gas pedal to coast to a slower speed. I supected a fuel flow
> problem and sure enough...that was it. But from and unlikely source. I
> discovered my idle control valve was not working right, and when the
> foot was off the gas, the idle valve was giving little shots of fuel
> into the engine, causing the engine to "buck"
>
> You might check your idle valve by first warming the engine, then
> shutting it off, then disconnecting the idle valve connector, then start
> back up, then adjust the idle speed to 850 rpm, then drive it without
> the idle valve being hooked up. if it runs smooth, you have and idle
> valve problem, if nothing changes then the problem is elsewhere.
>
> Good luck,
>
> John Rodgers
> 88 GL Driver
>
> Justin Wolfe wrote:
> >
> > First off, thanks everyone for all their input and suggestions with my
> > van troubles. I have changed the fuel filter. Added techron cleaner
> > and done a tune (plug, wires, air filter) The juttering is less
> > frequent but still happens. Anything else I can do??? I still need to
> > do a oil change. I'm going to add a 20-50 synthetic. The techron
> > ripped through my engine and got rid of so much crap. After I did this
> > the engine in idle was running out of control. I turned the idle down
> > some because it was sending the temperature way up. Is this normal?
> > Solve one problem discover a new one. Right.
> >
> > I think I have a serious issue with cooling the engine. The temp has
> > consistently rising to the half way point on the temp gauge, but now it
> > more frequently goes past half way when driving it through town. We are
> > planning a trip through Nova Scotia and upwards to newfoundland in
> > August. The tales of the long steep hill along the coast makes me
> > nervous. When my engine starts working on steep hills the temp goes way
> > up and the engine starts knocking. AM I DOOMED FOR A REBUILD OR ARE
> > THERE WAYS AROUND IT? I REPLACED THE HEADS ABOUT 7,000 MILES AGO. I
> > DROPPED SOME GOOD MONEY ON THEM AND WOULD HATE TO HAVE TO DO ANOTHER
> > MAJOR REPAIR. HELP?
> >
> > Thanks
> >
> > Justin
> >
> > '84 Westy 100,000 original miles
> > Summer vehicle only
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