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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

duel fuel tank problem

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Old Dec 13, 2017 | 04:24 PM
  #1  
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lemonslg
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duel fuel tank problem

When I have fuel in rear and front tank and I switch to use the front tank the fuel in the rear ends up in the front. This is a 1996 f150 Eddie Bauer 5 speed standard cab. Where do I look first for the problem?
 
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Old Dec 13, 2017 | 06:07 PM
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rla2005
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Welcome to FTE!

Fuel transfer is a very common problem on these trucks. We see this issue posted at least 2-3 times a week recently. The tank that is getting filled, in your scenario the front, has a bad valve in the Fuel Delivery Module. The fix is to replace the entire front FDM.
 
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Old Dec 14, 2017 | 12:56 AM
  #3  
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Da_Lariat_Chariot
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What rla said. Ford issued a recall for this problem. I would replace both pumps with updated versions, the other one WILL fail eventually.
 
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