Fuel tank selector valve?

Asked by Barefoot21 Jul 28, 2018 at 11:42 PM about the 1991 Ford F-150

Question type: Maintenance & Repair

91' f150. When tanks are full, return line dumps
from the rear tank to the front tank causing it to
overflow. I have researched the fuel tank selector
valve and cannot for the life of me find one, or
where one may have been at one time. I am fairly
savvy when it comes to vehicles and do all
maintenance and repairs myself on my family's 4
vehicles, if it is on the vehicle, it its not on the
frame rail where it is supposed to be. Has anyone
encountered this before, and how do I remedy it?

6 Answers

150

HI THERE, MY NAME IS STEVE ROSS, I HAVE A 1985 FORD F150 PICKUP WITH A 351W. I AM LOOKING FOR A TANK SELECTOR VALVE, AND THE NO. IS E3TZ9189A. CAN ANYONE HELP ME WITH THIS? IT HAS TWO WIRES , ONE TO THE MAINE TANK, AND THE OTHER TO THE SECOND TANK. AND IT LOOKS LIKE A CROSS

15 people found this helpful.
280

Fuel tank selector valve location. I have two tanks f-150 1992

28 people found this helpful.
190

Watch this video... https://youtu.be/qBE3LWWmelM

13 people found this helpful.
190

Also, while this symptom is very common in all fuel systems on these trucks, it’s important to know which one you have. My 1992 F150 doesn’t have the reservoir switch as outlined in the above video, but my rear tank would consistently empty into my front tank. I lived with it, until my front fuel pump failed. I replaced my fuel pump (and filter), and now, it appears to be operating correctly. Time will tell, hope this helps. P.S. - I’ve been an auto mechanic for 21 years.

6 people found this helpful.
70

Hey did anybody ever figure out how to get the selector switch bypassed

7 people found this helpful.

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