What Causes the Fuel Pump Nozzle Not to Click Off?

[StAsher]

Normally, the failure to click off is not an issue with the car. The design principle of the gasoline nozzle at gas stations is actually quite simple. It clicks off because when the fuel reaches a certain level, combined with the pressure and air in the fuel tank reaching a certain amount, it automatically triggers the switch inside the nozzle, causing it to click off. Gas station precautions: 1. No smoking: Strictly no open flames is a common warning seen everywhere at gas stations. For those who have the habit of lighting a cigarette when parked, this habit must not be brought to the gas station. This is because the concentration of gasoline in the unit space increases during refueling, and an open flame could potentially ignite the gasoline. 2. Turn off the engine while refueling: Most car owners are aware that the engine should be turned off during refueling. Every time you drive into a gas station, the staff will also remind you to turn off the engine. However, at some self-service gas stations or smaller stations, instances of refueling without turning off the engine have indeed been observed.