I've been searching for a few hours with no luck. Remember, never crank the engine for longer than 15 seconds at a time. A switch in the valve shuts off the motor when the valve reaches the selected position. Diagram for fuel selector valve operation. If FDA is defective, it must be replaced as an assembly. Next, pay close attention to the factory part you took off. Failure of this part will limit the ability to switch between fuel tanks. You can easily undo the ends and blow thru it. Cant' really comment on the product too much yet.
I've followed the fuel lines and they do not go to any box or valve. Problem could be in the switch itself or a bad wire connection. I have two articles explaining the drop process for the center and rear tanks. 5psi electronic pump (e-pump).
Also, this might be a prudent time to replace the mechanical lift pump with a spiffy new Duralift 7-9psi or 9-11. It would appear, though, that my return line does not actually return to either of the tanks. Fuel Tank Selector Valve & Switch. There is no fuel selector valve that I can see on this truck. Anybody got the specific testing resistances for this valve? Check on drivers side frame rail just about half way down. All the hoses are fine and no pinholes or leaks of any kind.
Look for tears or holes in the lines. Motorized fuel selector valves. Fuel hose replacement. Not a direct fit for some cab and chassis frames, or diesel vans. Not terribly expensive and should help with air leakage issues. There's power to the switch. Sometimes the fuel pickup bibs on top of the tank can get weak seals, and those can introduce air into the system, like in the image to the right. 7.3 powerstroke fuel tank selector valve diagram full. Check you are getting power to both pumps?
Bottom Line not recommended. I traced the fuel lines of both tanks and don't see anything that looks like the selector valve at all. A portion of high pressure flow from the pump is diverted to operate the venturi jet pump. This thread is kind of old but the reason you cant find one is because there isn't one. I don't believe the fuel pump itself is the problem. When the faulted valve is not replaced, engine may run out of fuel and/or the fuel pump may be damaged. If you need the electrical connections for this valve, be aware that you will not get them with the valve, as shown in the photo of the product in the product description. If you want to look at the drawing more closely you are welcome to download the actual file, which will give a clearer look. 7.3 powerstroke fuel tank selector valve diagram images. Then a little later I switched from front to rear tank and it didn't swap. In vans, the filter head is located on the top of the engine on the driver's side, and on the truck, it is located near the passenger side valve cover. Monday, July 8th, 2019 AT 12:36 PM. In other words, my return line goes nowhere. This is how you check to make sure you are getting fuel up to the filter. The gauge only shows the level of the front tank no matter which tank is selected.
First you have to cut the plug harness off your truck and swap it with the separately ordered #213.