fuel being returned to already full tank causing overflow. - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 7 (permalink) Old 10-27-2012, 08:38 PM Thread Starter
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fuel being returned to already full tank causing overflow.

Not sure how to best describe my problem, but I noticed fuel dripping from under my truck. I looked underneath and the fillerneck for the front tank was soaked and thats where the leak is. That tank has been full for about 3 weeks because my fuel transfere valve #### the bed. The needle indicates correct fuel level but will not draw off of the front tank. So I removed the fuel cap and fuel started to poor out. Not sure what is causing the fuel to be returned to that tank when I am drawing off of the rear tank. Then tank switch in the cab has been on the rear and was on the rear when this started. Any idea's?
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post #2 of 7 (permalink) Old 10-27-2012, 08:42 PM
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Re: fuel being returned to already full tank causing overflow.

The selector valve is bad.

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post #3 of 7 (permalink) Old 10-27-2012, 08:50 PM Thread Starter
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Re: fuel being returned to already full tank causing overflow.

Ok Thanks. I knew the selector valve was bad, but didn't know thats what would cause the back up. I'm guessing the leak just appeared today then. Thanks again.
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post #4 of 7 (permalink) Old 10-27-2012, 08:53 PM
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Re: fuel being returned to already full tank causing overflow.

mine dose the same if I run the front tank it gose in the rear tank


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: 97 f350 cclb drw 300,000 miles stage 2 160 100 sticks 17* hpop sd ic turbo set up off a t444e sd fuel pump ts chip cat fuel filters stage 3 ceramic clutch 410 gears 3 in down pipe to 4 in out the back 6637 air filter all the gauges fuel hpop pyro boost oil temp 50 gal fuel tank
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post #5 of 7 (permalink) Old 10-28-2012, 01:02 PM Thread Starter
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Re: fuel being returned to already full tank causing overflow.

Is the selector valve the same on both gas and diesel? Dealer wants $352.96. So I think I can find one in a junk yard easy enough but out of a gas truck. Obviously if they are the same I will have to flush out the gas one.
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post #6 of 7 (permalink) Old 10-28-2012, 01:34 PM
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Re: fuel being returned to already full tank causing overflow.

No they are completely different. You have to get one out of a diesel truck.

97 F-350 XLT CC DRW 4X4 PSD, 285/75-16 Custom bumpers, Gauges-boost/egt/trans, Swamps IDM, 3.5"dp- 4" exh., 3" Body lift, ES bushings/mounts, Built trans, billet conv, B&M pan, Hayden cooler, Adrenaline, stage 2's, IC, H2E, E-fuel
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post #7 of 7 (permalink) Old 10-28-2012, 03:42 PM Thread Starter
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Re: fuel being returned to already full tank causing overflow.

OK I figured as much where the diesel has return lines, versus gas that doesn't.
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