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Technical Info: 1st Generation Technical discussion of first generation (1989 - 1993) questions, solutions and upgrades. All 1st generation topics are suitable for this forum.
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Old 04-30-2014
JoeLuther JoeLuther is offline
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Default Filler nozzle clicking off

Anybody else notice that the filler nozzle clicks off randomly when filling the tank on a D350? Is there anything different between the two with regards to the tank and filler setup? I wouldn't think so since the bed is the same width and the filler cap in the same place but I'm not sure.

It's really odd, on the D250 it was pretty consistent and the tank would fill all of the way every time.

On the D350, the first time I filled it, it clicked off way early and the tank wasn't full. The next 2 times it filled all of the way up, these 3 times were all at the truck stop town. This last time, I was at a different place and it clicked off early again. I went maybe 10 miles and tried again. Clicked off early.

It's a minor issue, but it's a bear trying to sort out mpg when the dang tank doesn't fill reasonably close to the same point every time. I was really hoping to get a good reading this time because the mpg seems to be creeping up and I had a decent amount of highway time on this tank.

Weird.

Joe
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Old 04-30-2014
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Could be many issues that cause this. When filling my 06, it will be somewhat different every time.

This could be due to due to the pressure the pump is set at, the orfice in the pump, rarely but can be the temp of the product. These are things that the refiners consider.

That's why when I check for mpg's, I cap the tank off, (even thought your not suppose to do this) and I actually know what my 'actual' fuel consumption is. And if possible, I like to fill at the same pump and park in about the same area. But if nothing else, fill to the same visual point in the nozzle. And at least for me, when I leave the station and at minimum drive home, I know I'm below the breather valves for my tank when she's put in the garage.
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Old 04-30-2014
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Check for plugged tank vent. Very common problem on all of the Ford and Chev trucks(no Dodges at this time) we have at work (mine with lots of mud and dust). We usually have to get the mechanics to take the stock vent off of the top of the tank and run an extended one up behind the cab to the headache rack.

Highly unlikely its is the pump if it kicks off at anything less than pretty much full. Sounds like fuel is not flowing down the filler tube into the tank...usually due to plugged vent.
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Old 04-30-2014
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PIGIRON PIGIRON is offline
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Maybe the pump at the SAME gas station is too sensitive ?
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Old 05-01-2014
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Pumps can vary on delivery with the possibility of others drawing at the same time. The last time I fill the wives gasser, the pump kicked off twice with others pumping and when their pumps kicked off, it effected mine. Depends on the pumps layout on the islands.
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Old 05-01-2014
JoeLuther JoeLuther is offline
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Quote:
Originally Posted by anoldbiker View Post
That's why when I check for mpg's, I cap the tank off, (even thought your not suppose to do this) and I actually know what my 'actual' fuel consumption is. And if possible, I like to fill at the same pump and park in about the same area. But if nothing else, fill to the same visual point in the nozzle. And at least for me, when I leave the station and at minimum drive home, I know I'm below the breather valves for my tank when she's put in the garage.
Thanks for the reply. There is only one pump uptown at the truck stop on 70 that doesn't have the semi truck/larger diameter nozzle so the truck is always in the same place, roughly, that is where I usually fill up because the diesel turns over.

So you can see a fuel level on the nozzle? I can't get the truck filled enough to see a level on the nozzle, but I don't recall being able to do that on the D250 either. I could generally hear the level of the fuel in the tank rising on the D250 and could sort of predict when it was going to shut off on it's own. I don't hear that as distinctly on the D350 which is why I asked if they were different in some way.
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Old 05-01-2014
JoeLuther JoeLuther is offline
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Quote:
Originally Posted by Porky69 View Post
Check for plugged tank vent. Very common problem on all of the Ford and Chev trucks(no Dodges at this time) we have at work (mine with lots of mud and dust). We usually have to get the mechanics to take the stock vent off of the top of the tank and run an extended one up behind the cab to the headache rack.

Highly unlikely its is the pump if it kicks off at anything less than pretty much full. Sounds like fuel is not flowing down the filler tube into the tank...usually due to plugged vent.
Thanks for the reply, where's the vent? Top of the tank? I think the TDI has one by the filler door that may have been connected to the vent by a tube.
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Old 05-01-2014
JoeLuther JoeLuther is offline
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Quote:
Originally Posted by anoldbiker View Post
Pumps can vary on delivery with the possibility of others drawing at the same time. The last time I fill the wives gasser, the pump kicked off twice with others pumping and when their pumps kicked off, it effected mine. Depends on the pumps layout on the islands.
True, I've seen that same thing on gas pumps.

I've been by myself at the diesel pumps every time I've filled. The delivery rate was slower this last time when I was at the non truck stop pump, but the first time I was at the truck stop pump and it did the same thing.
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Old 05-05-2014
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Pull the filler neck and check the green ping-pong ball that's supposed to close off in a rollover. If it gets stuck or something like a gum wrapper gets lodged in there it can make for a miserable fill. The 91.5 D350 I had was plagued with that problem.
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Old 05-07-2014
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Green Ping Pong Ball ?

On my 06, I changed out my main tank and I seen nothing like that.
What years did they do that.
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