Date: Thu, 10 May 2012 19:53:53 -0700
Reply-To: Robert Fisher <garciasghostvw@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Robert Fisher <garciasghostvw@GMAIL.COM>
Subject: Re: more information on engine swap/fuel pump woes
In-Reply-To: <4fa70db5.486de00a.1a13.ffffb9cd@mx.google.com>
Content-Type: text/plain; charset=ISO-8859-1
Here we go again. Van had been running normally for a while after fixing
(?) my no-spark issue. Then (much later) it began to have little
hesitations; a very brief, but seemingly complete loss of power while
driving. It never killed the engine- sometimes it didn't happen at all,
sometimes it happened a lot. This kept up over several tanks of gas. It
usually only happened after the first mile of driving if it was cold, but
once or twice happened almost immediately after taking off. We couldn't
work out a consistent pattern. If anything it seemed to happen the most
when driving on a north/south road. Go figure.
I ran it with and without the O2 sensor, no change. I checked a bunch (but
not all) of the wires and grounds. Nothing obvious jumped out. Eventually
it tapered off and just quit doing it; neither of us has noticed it for
more than ten days. This is my only daily driver at the moment so it's hard
to get any decent block of time to troubleshoot.
Well I have all the time I can find now 'cause it stopped running again. My
wife drove my daughter to school at oh-dark-thirty for a field trip; the
van ran absolutely normally. When she got back in it to come home, it
cranked but wouldn't start. When I got to the van I looked it over for the
usual suspects I didn't see anything obvious so I tried to start it. I
immediately noticed the lack of 'buzz' from the fuel pump. No vibration at
all when the key is turned to first position or when cranking. Put the
meter on it and got no voltage, so we dragged it home.
I pulled the pump and put 12v to it. It spun up, no unusual noises or other
noticeable issues. I ran it in reverse for a few seconds just for GP, all
seemed well so I put it back in. On having my wife crank the van there was
no voltage again with the key in first position, but I got 10.~ volts when
cranking. However the pump didn't feel like it was running and of course
the van didn't start.
I'm going to go through the Bentley and try some of the tips in this thread
tomorrow; I'm just running out of daylight now and I wanted to get this
written down before I forgot something.
Anything jump to anyone's mind for when I get back on it?
TIA,
Cya,
Robert
'87 & '86 2.1/Auto GLs
