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6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis

Fuel Gauge Problem?

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Old Aug 31, 2007 | 07:59 AM
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PSD6litre40
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Fuel Gauge Problem?

Both tanks I have put through my truck, I have ran it to 30-40 miles to empty. Both times I have only been able to squeeze 20.8 and 21.0 gallons in it. Is there a fuel ventilation problem or a gauge problem. I thought I was getting horrible mileage but seems to be ok considering.
 
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Old Aug 31, 2007 | 12:37 PM
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The_Juice
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My gauge problem is that it goes down way to fast. As for fueling, when the pump shuts off I have squeezed an additional 4 gallons into the tank. Problem with ventilation and foaming of the fuel I believe...I'm sure others will chime in on a tank modification you can do.
 
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Old Aug 31, 2007 | 01:22 PM
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mine goes down in a hurry also, but checking Miles to Gallons its not actually consuming as much as it looks.
 
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Old Aug 31, 2007 | 03:03 PM
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There was a topic on harpooning (click me) your tank. I have not tried it, but others have with success.
 
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Old Aug 31, 2007 | 03:37 PM
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I could easily fit 26-27 gallons on the 06 before it would click off when it was on E.
 
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Old Aug 31, 2007 | 09:02 PM
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Same here, 30 miles to empty, most I can get in is 23 gallons. I've tried a couple times to pump real slow after that and can usually squeeze a gallon or so in, but then it just starts pouring out of the bottom of the truck till I stop. At $3 a gallon, what a shame to pour it on the ground lol...
 
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Old Aug 31, 2007 | 09:13 PM
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That's not a fuel gauge problem. I think ford says 28-32 gallons for the SWB trucks. This includes about 5 gallons of "reserve" that does not register on the gauge. I've driven for 80 miles after a low fuel light went on, and still didn't put the whole 38 gallons in my old F-350.
 
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Old Aug 31, 2007 | 10:52 PM
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Originally Posted by The_Juice
My gauge problem is that it goes down way to fast. As for fueling, when the pump shuts off I have squeezed an additional 4 gallons into the tank. Problem with ventilation and foaming of the fuel I believe...I'm sure others will chime in on a tank modification you can do.
This is exactly what I have to do. Slow at the end and watch the filler neck. Another trick if the handle only pumps fast is to let it settle between shutoffs.

1diesel
 
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