* Dead battery: A completely drained battery will prevent the fuel pump from operating. This is the most common reason for a car that won't start. Jump starting the car will usually resolve this.
* Faulty fuel pump relay: The fuel pump is controlled by a relay, a small electrical switch. A bad relay can prevent the pump from activating. This requires replacing the relay.
* Fuel pump failure: The fuel pump itself could be malfunctioning. This requires replacing the fuel pump, which is a more involved repair.
* Inertial fuel pump shut-off switch: Some vehicles have an inertia switch designed to cut off the fuel pump in a collision. This switch is typically located in the passenger compartment (often under the dash, sometimes in the trunk). Check your owner's manual for its location. If found, it might be tripped and need to be reset by pushing or turning it. *This is the closest thing to a manual "fuel shutoff" switch your Taurus might have.*
* Other electrical issues: There could be a problem with the car's computer system, wiring, or other electrical components affecting fuel delivery. This would require diagnostic testing by a mechanic.
Before attempting any repairs:
1. Consult your owner's manual: Your manual will have diagrams and information specific to your 1999 Ford Taurus.
2. Safety first: Always disconnect the negative battery cable before working on any electrical components.
If you suspect a problem beyond a dead battery, you should:
* Have the vehicle towed to a qualified mechanic: Diagnosing fuel system problems requires specialized tools and knowledge. Attempting repairs yourself without experience could lead to further damage or injury.
In short, there's no simple "reset" button for a fuel shut-off switch on a 1999 Ford Taurus. The issue is likely more complex and requires professional diagnosis.
