fuel tank switch location?

1992 FORD F-150
Avatar
BGREENE2025
  • MEMBER
  • 1 POST
my fuel tank switch does not work. i switch it from the rear tank to the front tank and it drops to empty and the truck dies. the front tank is completely full of gas but shows nothing. what should i try?
Oct 16, 2008 at 8:33 PM
Advertisement
Avatar
BMRFIXIT
  • CAR REPAIR CONTRIBUTOR
  • 19,053 POSTS
This vehicle does not use an external fuel tank switching valve. A supply check valve in the fuel pump assembly opens when the outlet pressure from the energized fuel pump exceeds the opposing check valve spring force.

You need to check and determine if its the switch or the fuel pump that is bad check for power at the fuel pump connector if you do have battery power and ground then fuel pump no good (give the tank a hit or two in the middle of it while a helper cranking for you ) if not check the wiring and switch
Oct 16, 2008 at 9:08 PM
Avatar
RACEFAN966
  • CAR REPAIR CONTRIBUTOR
  • 5,029 POSTS
Ok so you have a fuel pump in each tank and you have a setement bowl on the frame and a fuel filter. No you need to determine if the pump is dead or not. Also check the tank selector switch


https://images.2carpros.com/forum/automotive_pictures/249564_379324_1.jpg

and the fuel tank selector valve


https://images.2carpros.com/forum/automotive_pictures/249564_wl2fsv2003_1.jpg

Let me know how it goes.
Oct 16, 2008 at 9:10 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.