Where is the fuel shut off valve?
Mia Phillips
Updated on February 26, 2026
Houses with natural gas have a main shutoff valve (Fig. A) located just before the gas meter. This valve, often called the street-side valve, is normally a rectangular nub (Photo 1). When the long side of the nub or handle is parallel to the incoming gas line, it’s open and the gas is flowing.
How does a fuel shut off valve work?
The fuel flows from the tank into the float chamber through the needle valve. When the fuel rises to a specific level, the float rises. When the buoyancy of the float is balanced with the fuel pressure, the needle valve shuts off the fuel passage, thereby maintaining the fuel at the predetermined level.
What is the fuel shut off valve?
A fuel shutoff solenoid is an electromagnetically-operated valve used to remotely cut the fuel supply to an engine. The solenoid typically consists of a valve body with an integral solenoid assembly connected to the valve stem.
How do I know if my gas shut off valve is bad?
Symptoms of a Bad or Failing Fuel Pump Shut Off Switch
- Engine suddenly stops while driving. One of the first symptoms of a potential issue with the fuel pump shut off switch is an engine that suddenly stalls while driving.
- Switch that trips for no reason.
- No start condition.
What is fuel shut off valve?
A fuel shutoff solenoid is an electromagnetically-operated valve used to remotely cut the fuel supply to an engine. When the solenoid is deactivated, the valve spring pulls the poppet back onto its seat effectively cutting the flow of fuel.
What is fuel valve?
A device which receives pressurized fuel as a liquid and sprays it into an engine cylinder as a fine mist. It consists of a nozzle and nozzle holder or a body. The nozzle has a series of small holes around its tip.
How do I reset my fuel shut off switch?
How to Reset a Fuel Pump Shut Off Switch
- Locate your car’s inertial trigger or airbag control module.
- Push the button on the inertial switch; it should be clearly marked as the fuel pump reset, and may be in a contrasting color to the case.
