Date: Tue, 16 Jul 2013 06:56:26 -0700
Reply-To: Alistair Bell <albell@SHAW.CA>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Alistair Bell <albell@SHAW.CA>
Subject: Re: engine bucking and bogging - simple answer
In-Reply-To: <CANEuo0j1LG2qbK7FGGqLQTT9YsD4MGnW3XJCDD4sta9h_8-OUQ@mail.gmail.com>
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Ken,
I've even seen the filler neck rubber joiner rotted out on a 2wd van and water getting in the tank by the gallon.
But I think I mentioned I have a syncro.
I know I said I'm leaning towards the bad gas explanation. Why? well this problem has occurred 3 times over 4 years. Every time it has gone away with a fill up of gas. It has never happened at any other time, never in winter.
alistair
On 2013-07-16, at 5:45 AM, kenneth wilford (Van-Again) wrote:
> Alistair, it can be water in the fuel contamination. One way to see is to pull the hose from the gas tank to the fuel pump and let it drain into a clear mason jar. You don't have to drain much in there, just the first mason jar full, then hook the line back up to the pump to stop it from draining and take a look at the fuel. The water will settle to the bottom of the tank and it should be the first bit that comes out when you drain the tank. If you let the mason jar sit for a short time you will see it separate out. You may also see rust particles coming out as well. If everything is clear and water/rust free then you know this isn't the problem. If you see rust, you should consider a new fuel tank and new seals and lines for it.
>
> One source of water getting into the tank that most people ignore or don't think about is in the front wheel wells on the 2wd Vanagons. They plastic expansion tanks live there and on top of them there is a plastic valve with a big rubber seal around it. Over time the seal can go bad and then dirt and road debris will get in there and allow water to get past the seal. Now every time you drive through a water puddle you are getting some water in your gas, or if you are driving all day in the rain, it is getting in there. Be sure to check or change these seals if you haven't before. I went through this with my Dad's 89 Wolfsburg. His gas tank was also shot by rust by the time we figured out what was happening, but since we repaired all of these things (new tank, new seals and hoses) he hasn't been having the stalling out problem.
>
> Hope this helps,
> Ken Wilford
> John 3:16
> www.vanagain.com
>
>
> On Mon, Jul 15, 2013 at 9:02 PM, Alistair Bell <albell@shaw.ca> wrote:
> I will. But the timing and the cure of the problem makes me think bad gas.
>
> One would think that if it was a wiring issue it would occur more frequently, and in winter too. Winter here means rain, lots of rain. Temp 2 sensor in a bit of an exposed to road splash area.
>
> But I will check the connection and wires.
>
> thanks
>
> alistair
>
>
> On 2013-07-15, at 5:49 PM, Dennis Haynes wrote:
>
> > Check the wiring/connections to the temp 2 sensor next.
> >
> > Dennis,
> > From my phone.
>
>
>
> --
> Thanks,
> Ken Wilford
> John 3:16
> www.vanagain.com
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