Fuel Level Sensor: The fuel pump in a vehicle is commonly equipped with a fuel level sensor that measures the amount of fuel in the tank. When the fuel pump malfunctions or fails, it may disrupt the sensor's readings, resulting in inaccurate fuel gauge readings.
Electrical Issues: A faulty fuel pump can cause electrical problems in the vehicle's fuel system, affecting the circuit responsible for the fuel gauge. If there is an electrical issue caused by the fuel pump, the fuel gauge may malfunction or stop working entirely.
Fuel Starvation: If the fuel pump fails to deliver sufficient fuel to the engine, it can lead to fuel starvation. When the fuel system experiences fuel starvation, the fuel gauge readings might fluctuate erratically or fail to register the correct fuel level.
Fuse and Wiring: A faulty fuel pump may blow the fuel pump fuse or cause damage to the fuel gauge's wiring. This can directly impact the fuel gauge's functionality, resulting in incorrect fuel level readings or gauge failure.
To address this issue, it is essential to have a qualified mechanic or technician diagnose the fuel pump and fuel system to determine if the pump failure is the root cause of the fuel gauge malfunction. Replacing a faulty fuel pump, if necessary, should resolve the problem and restore the fuel gauge's accuracy.
