A fuel sending unit is a device that measures the amount of fuel in a vehicle’s fuel tank and sends that information to the fuel gauge on the dashboard. It is typically located inside the fuel tank and consists of a float, a resistor, and an electrical connector.
As the fuel level in the tank changes, the float moves up and down along the resistor. This changes the resistance of the circuit, which sends a different signal to the fuel gauge. The fuel gauge then displays the appropriate fuel level on the dashboard.
Fuel sending units are an important part of any vehicle’s fuel system. They help the driver to know how much fuel is left in the tank, so that they can avoid running out of gas. They also help the driver to monitor their fuel consumption, so that they can budget their fuel accordingly.