Fuel Level Sensor: Testing and Inspection

The fuel level sensor contains a variable resistor (track). As the float moves up or down, electrical resistance will change. To test the fuel level sensor only, it must be removed from vehicle. The sensor is part of the fuel pump module. Refer to Fuel Pump Module Removal/Installation for procedures. Measure the resistance across the sending unit terminals. With float in up position, resistance should be 20 ohms ±6 ohms. With float in down position, resistance should be 220 ohms ±6 ohms.