Date:         Wed, 12 Sep 2007 07:16:24 -0700
Reply-To:     Robert Keezer <warmerwagen@YAHOO.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Robert Keezer <warmerwagen@YAHOO.COM>
Subject:      Re: Fuel Pump Wos.......
In-Reply-To:  <vanagon%2007091205400105@GERRY.VANAGON.COM>
Content-Type: text/plain; charset=iso-8859-1

Kurt, what you describe as a fuel supply problem
as the reason for your engine stalling , may not
be the fuel pump at all.

It could be a variety of things, unrelated to
fuel.

Your question:  There should
> be juice to the positive terminal with switch
> on - correct?"

No- the pump does not have power with the switch
on after it cycles on briefly when truning on the
switch (key)
 The pump only runs constantly when the computer
receives a contant rpm signal.
You can use a jumper wire at the fuel pump relay
to test the operation of the pump.

When the engine stalls the fuel supply often gets
the blame, but from the decription you gave , it
could be something else like the air flow meter,
or Hall sender in the distributor, or the coil,
etc.

Does it start right up again after stalling?
Have the pump flow tested first.

This can be done by a shop. If you tested your
pumps before intalling them, and even after
replacing the tank, then fuel supply does not
sounds
 like your problem.

Robert

1982 Westfalia










--- Kurt Grotz <kgrotz@CRAFTECH.COM> wrote:

> After 3 years I finally was able to afford to
> send my 86 GL to a real VW
> shop. It was running best ever thanks to the
> folks at Gene's for three days
> until Sunday when I was driving home with my
> dog Rex - through my small home
> town of Media PA. (THere are 2-3 of us Vanagons
> in town.) Anyway - it dies
> again.  The engine just stops.
>
> It felt like the old familar fuel system going
> dead.  I know what that feels
> like....after 3 fuel pumps - and finally a new
> gas tank I thought I had it
> resolved.
>
> My first thought is that it might be the used
> fuel pump that went kaaput.
> I swear I am getting a new one soon!   But, I
> checked the juice to the pump.
> No juice with ignition on.   At least I can
> check that myself.  There should
> be juice to the positive terminal with switch
> on - correct?
>
> So - I am thinking it is something else.  If I
> am not mistaken there is a
> fuel pump relay in the engine compartment,
> which I found after much
> searching in Bentley manual.  Wouldn't is be
> nice if that book had a real
> index?   I don't have a lot of testing
> equipment so are there any ideas of
> what and how I test next.   I have a couple of
> old relay switches from my
> old 84 vanagon (deseased.)  Do they work as
> replacements?
>
> I sure hope it is something simple because when
> it died - I coasted it down
> a friends driveway - into a spot that will be
> darn hard to get a tow truck
> into.   Man I hate it when that happens.
>
> Thanks
>
> Kurt Grotz
>
> PS - I am the chap that hyrdo seized (what ever
> that is called) my engine
> when goofing with the fuel system a year or two
> ago. You all helped with the
> a great deal.
>




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