Question about 1985 Ford Econoline

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1985 classC 350 econoline motorhome

Engine does not run after switchen to other tank,,, it runs on back tank fine, andy

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There is a small electric motor that switches fuel between tanks and the switch itself could be faulty, replace both and check fuel filters at same time.

Posted on Aug 08, 2009

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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.

Posted on Aug 08, 2009

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They are for both. both run the motor home and start the engine. They are there for short term use for the motor home electrical. Your motor home has to be plugged in to an outlet source for long time/engine off use.

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I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

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Where is the fuel pump located on a 1987 ford 350 motorhome jambaree


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I have an 85 Ford E350 chassis motorhome that won't switch to the rear gas tank. When the you flip the selector switch at the dash, you can hear a click from the transfer switch on the frame. The rear tank...


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.

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On the few Fords I have owned, mine were always in the middle, or to the left of the middle.

Motor homes should run cooler actually, beings as they tend to have heavy duty large capacity cooling systems.

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