To stop fuel flow in an emergency, you'd need to address the fuel pump itself. This is generally not something you'd easily disconnect while driving.
Possible locations for things that *indirectly* affect fuel flow:
* Inertia Switch: This safety device cuts power to the fuel pump in a collision. It's often located under the dash or in the passenger compartment, sometimes near the kick panel. Check your owner's manual for the exact location in your specific Bronco II. This won't be a simple "on/off" switch.
* Fuel Pump Relay: Located in a fuse box (usually under the hood or inside the passenger compartment). Disconnecting this relay will stop the fuel pump from working, effectively cutting off fuel flow. This requires knowing which relay is for the fuel pump. Your owner's manual or a wiring diagram will be helpful here.
Important Note: Disconnecting the fuel pump relay or messing with the inertia switch should only be done for emergency situations or with a full understanding of your vehicle's electrical system. Improperly disconnecting electrical components can lead to damage or further issues.
If you need to completely shut off fuel flow, the best and safest approach is to have the vehicle towed.
