Date: Sun, 13 Apr 2025 07:58:05 -0400
Reply-To: Stephen Grisanti <bike2vcu@YAHOO.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Stephen Grisanti <bike2vcu@YAHOO.COM>
Subject: Re: Vanagon Stalling Out While Driving
In-Reply-To: <1642B6CE-EC90-4E61-B2E1-9ED217EB9314@comcast.net>
Content-Type: text/plain; charset=utf-8
If it has not already been mentioned, you can add the fuel pump to the list of suspects. Our van would occasionally stumble and nearly die, usually within a couple miles of home, then clear up for the rest of the day no matter the distance. Seemed to be associated with some component warming to operating temp.
Finally stopped dead and required the van’s first tow home. Fuel pump. Never knew they could be intermittent like mine had done. Had two previous FP failures (‘88 Aerostar and ‘95 Caravan) that both occurred during sales calls after which the vans would not restart, and both more than a hundred miles from home. Neither made a stumble leading up to the failure.
Replaced it and had no further hiccups. Ironically, I had a spare under the back seat but had removed my tool bag during a cleaning frenzy and not put it back. Also ironically, learned in my driveway that my travel tools were inadequate for a component aged into position beneath the van.
An earlier episode with similar symptoms turned out to be the Temp 2 sensor, so a lot can go wrong and can present identically.
Good luck.
Stephen
Mobile
> On Apr 12, 2025, at 4:38 PM, Eric Caron <ericcaron96@comcast.net> wrote:
>
> Hi
>
> Start with Dennis recommendations.
>
> So many different causes for something like this. You will need to follow a list of checks.
>
> And if fuel filters and such were not changed in your memory then only good can come from changing them.
>
> For me the ultimate cause of a similar issue was a bad brand new AFM from GW. Many attempts to fix did not improve things until I used a AFM that a list member sent me through Dennis Haynes. That gift saved the day!
>
> Van is running great for the last two years.
> Before that we tried ,
>
> Wiring harness, New Temp 2 sensor, new O2 sensor and wire check.
> New throttle body.
> And bunches of grounds.
>
> It could be any of those things. But for us, a new bad AFM was the sneaky culprit.
>
> Keep us posted.
>
>> On Apr 12, 2025, at 10:01 AM, Dennis Haynes <d23haynes57@HOTMAIL.COM> wrote:
>>
>> Temp 2 sensor and O2 sensors first place to look. Wiring and grounds common problems. Many of the engine wiring harnesses are now becoming compromised as the insulation is failing and the wires are corroding within.
>>
>> Dennis
>>
>>
>> -----Original Message-----
>> From: Vanagon Mailing List <vanagon@gerry.vanagon.com> On Behalf Of Markus Benne
>> Sent: Saturday, April 12, 2025 9:56 AM
>> To: vanagon@GERRY.VANAGON.COM
>> Subject: Vanagon Stalling Out While Driving
>>
>> My bus has developed an escalating issue where it it will bog while driving for a second, then keep going.
>> This has been going on for about a year, but it is suddenly much worse, to the point of the car actually stopping. Usually it will eventually restart and run fine for a little while before recurring. Frequency is increasing.
>> I needed a tow the other day for the first time, and I'm about to trouble shoot, but it was placed badly (couldn't open rear hatch), and although it started badly, it did start, and is now running fine. Grrr.
>>
>>
>> Exhaust isn't blocked as far as I can tell ie exhaust is coming out.Air filter seems ok.Fuel supply next I guess.
>> Any input appreciated.
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