Date: Thu, 10 May 2012 22:54:39 -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: <4FAC9911.4000902@turbovans.com>
Content-Type: text/plain; charset=ISO-8859-1
Thanks, I'll try that. I've been leery of the hall sender since the phantom
no spark episode a while back... It tested out ok according to the tips and
tricks that I gleaned from the list, but I've wondered about it all along.
I have no idea how old it is. I have another one that I can try if it
warrants it. I'll do the troubleshooting according to Hoyle tomorrow and
see what that gets me. I just jumped to the pump since it obviously wasn't
functioning normally in situ.
On Thu, May 10, 2012 at 9:44 PM, Scott Daniel - Turbovans <
scottdaniel@turbovans.com> wrote:
> here is a very nice super simple fuel pump 'power to it' trick.
> requires only one tool..
> a small screw driver or even a paper clip.
>
> don't even need the keys for the van.
> this is to run the fuel pump ..
> downstream of all relays and switches that control it.
> as a test.
>
> open rear hatch,
> remove engine cover lid
> remove cover from relay box on left side.
> the Fuel Pump relay is the right one.
> ( heck ..a body could use this trick to pump old gas out of a parts van
> say ..before that gas gets too old ) .
>
> jump, with your small screw driver the top wire and the very bottom wire .
> ( this routes Batt voltage on the red wire, to the double white wire on
> the bottom ) .
>
> if that makes your FP run ...and your fuel pump doesn't run otherwise
> when it should ..
> you can figure the fuel pump , the wires, and its ground are working.
>
> on one 2.1 waterboxer I dealt with ..
> intermittent no-start.
> you could also drive it 9 miles with no problems..
> but then ..intermittently ......wouldn't fire up, no ignition.
>
> that one turned out to be a Hall Sender in the distributor.
> New one of those fixed it very nicely.
>
> scott
> www.turbovans.com
>
> On 5/10/2012 7:53 PM, Robert Fisher wrote:
>
> 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
>
>
>
--
Cya,
Robert
'87 & '86 2.1/Auto GLs
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