Fuel system
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Elder User
Joined: Jun 2010
Posts: 568
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From: Northern IL
Fuel system
Ok, I'm really frustrated. When I google "Fuel Delivery Module" or "Fuel Check Valve" I get a bunch of posts from this forum but no results for actual parts or part numbers, all dead ends about everybody asking the same question, and the same answer of "oh yeah it's the fuel deliver module". What is this part called for real?
Scenario: 1993 ford f150 dual fuel system, the rear tank when selected fills the front tank to the point of overflowing. When front tank is selected, there's no crossflow. I've been told it's my front tank that needs to be fixed.
Sorry if this sound angry, it's just frustrated with having this problem for a year and never being able to find the correct part. I'd fix it if I knew what the part was.
Scenario: 1993 ford f150 dual fuel system, the rear tank when selected fills the front tank to the point of overflowing. When front tank is selected, there's no crossflow. I've been told it's my front tank that needs to be fixed.
Sorry if this sound angry, it's just frustrated with having this problem for a year and never being able to find the correct part. I'd fix it if I knew what the part was.
Junior User
Joined: Dec 2008
Posts: 71
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From: Eagle River, Alaska
I hope things work out for you.
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Elder User
Joined: Jun 2010
Posts: 568
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From: Northern IL
i understand it's dangerous but, this is my only means of transport, I'm only using one tank at the moment. It's been said the part that brakes is inside the fuel pump. How do I know which pump to get especially from Rock Auto since they list different pumps for the different tanks. I'm 85% positive it's a 16 gallon tank. What are the dimensions of the front midship tanks?
Freshman User
Joined: Nov 2005
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Do a search on fuel tank resevoir or fuel tank selector valve, it's on the drivers side rail by the front tank, 4 hoses on one side 2 on the other, 2 on one side is supply and return for the motor, the other is supply and return for the tanks.
Freshman User
Joined: Nov 2005
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Ok that looks different than mine but on the 89 it controls flow from the selected tank and the return from the engine back to the correct tank, basically they both do the same thing. It would be my best guess to fix your problem. It can be removed without removing the tank just label the lines good.
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Joined: Jun 2011
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From: Milford, CT
If you have that selector. I believe 93 was the year that they switched to high pressure senders. There is a fuel filter on the rail with this system, 1 in 1 out. Shortbeds got the 16gal tank, longbeds the 19. That doesn't look like the Ford reservoir switching valve, it should have 6 ports, 2 for the engine and 2 for each tank.
-Mike
-Mike
Fleet Owner
Joined: Aug 2005
Posts: 23,667
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From: Easton,Ks
In 93 you do not have anything on the frame rail except a fuel filter.
The Ford trucks went to one high pressure pump in each tank in 1990.
The parts name is the Fuel Delivery Module (FDM) but auto parts stores some time just call a fuel pump.
Yes your front FDM is bad.
The FDM:
/
The Ford trucks went to one high pressure pump in each tank in 1990.
The parts name is the Fuel Delivery Module (FDM) but auto parts stores some time just call a fuel pump.
Yes your front FDM is bad.
The FDM:
/
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