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Subject:Re: Weird little electrical problem
From:Jim. Felder
Date:Mon, 26 Apr 2021 08:27:04 -0500

Have no idea exactly where the errant currant came from or exactly where and how it went. I would love to find out. But in answer to the second part, yes, my 37 year old diesel powered bus has all the modern upgrades : )
  

  
I am driving it almost daily, and none of this bed stuff is happening.   
  

  
  

  
  
>   
> On Apr 25, 2021 at 10:22 PM,  <Neil (mailto:musomuso@gmail.com)>  wrote:
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>   
>   
>  Cool. And yes, good point on water in fuel.  
>
> I know you're a very experienced Vanagon owner so assumed coolant  
> level was fine but I've had the coolant low light come on while  
> coasting down a long long steep hill. But in my case, as a less  
> experienced owner-operator, in fact, the coolant was low.  
>
> ;^)  
>
> Just a WAG though but do you think power fed back through the cluster?  
>
> Has your van been upgraded to the later style coolant low module?  
>
> Neil.  
>
> On 4/25/21, Jim. Felder  <jim.felder@gmail.com>  wrote:  
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> >  Neil, you may be on to a something. But a few comments:  
> >   
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> >   
> >>   
> >>  On Apr 25, 2021 at 2:39 PM,  <Neil (mailto:musomuso@gmail.com)>  wrote:  
> >>   
> >>   
> >>   
> >>  Assuming water in fuel or slightly low coolant level weren't at  
> >>  fault.....  
> >>   
> >>   
> >>   
> >>  I can’t say about the water in the fuel—though it would still be in  
> >>  there, and the symptom hasn’t occurred since that night—but the coolant  
> >>  level was and is tip top.  
> >>   
> >>  Fault in 15 circuit (e.g. ignition switch) caused fuel cut off  
> >>  solenoid to close which in turn caused a subtle electrical design  
> >>  difference in the Vanagon.org foil to make the coolant light flicker?  
> >>   
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> >>   
> >>  I suspect this is likely the issue.  
> >>   
> >>   
> >>   
> >>  Here is where I think you have tied things together.  
> >>   
> >>   
> >>   
> >>   
> >>   
> >>   
> >>  Jim  
> >>   
> >>   
> >>  After 4 hours driving, excess water in engine bay would likely have  
> >>  evaporated off but.....  
> >>   
> >>  Water fouled connections at sensor that connects to glow plug relay  
> >>  which in turn caused issue in 15 circuit to fuel cut off solenoid? (15  
> >>  connects to solenoid via pin at glow plug relay)  
> >>   
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> >>  Arm chair theorist,  
> >>   
> >>  Neil.  
> >>   
> >>  On 4/24/21, Jim. Felder  <jim.felder@gmail.com>  wrote:  
> >>   >  I went on a week long birding/photography trip about a thousand miles  
> >>   >  long.  
> >>   >  Except for the first two days it rained pretty much all the time on the  
> >>   >  gulf  
> >>   >  coast. I got flooded out of a campsite and drove down dozens of flooded  
> >>   >   
> >>   >  streets. Nothing happened then but on the way home, after about four  
> >>   >  hours  
> >>   >  of driving, the temp light flickered on and off at times, usually 5 or  
> >>   >  ten  
> >>   >  minutes apart. The gauge showed normal the whole time. I stopped to  
> >>   >  make  
> >>   >  sure everything was normal under the hatch. Twice the engine stumbled  
> >>   >  while  
> >>   >  the red light was on but quickly recovered.  
> >>   >   
> >>   >   
> >>   >   
> >>   >  I figured it was wet wiring. Since I got home and things have dried out  
> >>   >  I  
> >>   >  have not been able to reproduce any of these problems.  
> >>   >   
> >>   >   
> >>   >   
> >>   >  I drive a 1983 turbo diesel 5-speed with Vanagon.org dash foil  
> >>   >  replacement.  
> >>   >   
> >>   >   
> >>   >   
> >>   >  Jim  
> >>   >   
> >>   
> >>   
> >>  --  
> >>  Neil n  
> >>   
> >>  VE7TBN  
> >>   
> >>  1988 Westy 50º ABA swap: https://tinyurl.com/yap5hpwt  
> >>   
> >>  1981 Westy 15º ABA swap: https://tinyurl.com/y9n4xob8  
> >>   
> >>  VAG Gas Engine Swap Group  <http://tinyurl.com/khalbay>   
> >>   
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>
> --  
> Neil n  
>
> VE7TBN  
>
> 1988 Westy 50º ABA swap: https://tinyurl.com/yap5hpwt  
>
> 1981 Westy 15º ABA swap: https://tinyurl.com/y9n4xob8  
>
> VAG Gas Engine Swap Group  <http://tinyurl.com/khalbay>   
>