1991 Ford F150 Dual Gas Tanks Problem

ford
f150

#1

Truck has dual front & back fuel tanks. Front tank is Full but truck won’t start.

Truck will start when switch is on Back tank,but it starts pumping fuel from(back tank) into front tank and gas overflows, spilling gas out on to the ground. The only way to stop it is to turn the trck off.


#2

It sounds like someone has switched sensors, wires etc. Has anyone worked on that system recently?


#3

There was a factory recall regarding that problem.


#4

Search for recall 93v125000. It may be the answer to your problem.