1985 Ford Econoline rv, has two tanks, rear tank has some sort of shut off switch I am told so that the generator does not use the last of the fuel in the tank. Since the RV does not have a generator that runs off fuel I would like to get full capacity out of the rear tank because now i cant use the tank at all even though it is full. The mechanism has become faulty. Any one know how to bypass or get rid of this shut off device?? Thanks

1987 E-350 Econoline fuse box diagram? - Page 2

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Jul 18, 2013 - I do have the wiring diagrams for the 1982, 1985, 1988 and 1989 Econolines but I never had an 1987 van or RV. That said it sounds like you ...

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Ford E-350 fuse box and relays diagrams

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Ford E-350 fuse box and relays diagrams. Explore interactive fuse box and relay diagrams for the Ford E-350. Fuse boxes change across years, pick the year ...

Missing: 1985 ‎' Show results with: 1985

looking for a 1986 Ford E350 owners manual to find a view

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Jul 10, 2007 - Looking for a 1986 Ford E350 owners manual to find a view of fuse panel - Answered by a verified Ford Mechanic.

1 answer · Top answer: Here's an illustration of the fuse panel on your E350: graphic [/uploads/Larrycarley/2007-07-10_140 ...
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You need to replace your fuel sending unit, This sends info, to your ecm "computer" witch sends to your gagues. It is located on top of your fuel tank. Best of luck to you.

Ok sounds like a electrical problem being an 89 its fuel injected eather 5.0 or 5.8 each tank has its own fuel pump and sending unit a dashboard switch, relay, fuse and switching motor. check your fuel line from the front tank it could be clogged. check for 12v pwr. to the front pump the sending unit will require 4V but not much. as soon as the fuel rail pressureizes the ECM shuts the pump off using the relay. Usually the tank switch goes bad first.

find the solenoid and you should here it click when it switches over,,,if you here nothing test that its getting a 12 volts feed,,

If you have dual tanks they each have one in it. There may also be one on frame rail which pushes fuel via the tank switch.

there is a switching valve under the vehicle that switches from front to rear. it may have gone bad or the switch itself may be bad

Either the fuel line from the front tank to the switching valve is plugged or kinked, or the valve is not moving all the way to that tank (if electrically switched). Pull the hose (from that tank) off at the valve--do you get good fuel flow? If the front tank is lower than the valve, try switching the fuel lines from the two tanks at the valve, and set the switch for the rear tank. If it now runs, clean the valve or replace it.

You should be able to hear the pump in the tank running. If you don't check the fuel pump relay. If you hear the pump running then the line/filter could be plugged. The white relay is the tank selector relay, the green relay is the fuel pump relay. If the green relay is bad you will have a bad time getting the replacement. The new relays from the dealer and parts stores are all 5 pin. The green relay is a 4 pin.

Also your genset probably has a pump that pulls from that tank on its own.

85 ford 350 econoline van with 460 engine and duel tanks, lost prime on both tanks, cannot get gas up to inlet on carb, it happen after having shot work on vaccum lines, i can't hear the pumps in the tanks making a buzzing noise, i hear a click when i switch from front tank to the rear tank , somewhere under the hood, on the driver side front fender, what is the next step.

based on my 20 years in a Ford dealer your problem is the front pump.