Cummins ISX » SPN-829 FMI 3 Left Level Fuel Sensor - Fuel Sending Unit

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LEFT FUEL LEVEL SENSOR
VOLTAGE ABOVE NORMAL, OR SHORTED TO HIGH


SPN: 829
FMI: 3

It can be the level potentiometer or a bad wiring harness. Both need to be evaluated/tested for diagnosis. Check for loose wires or corroded electrical connections.


Fuel Sending Unit Code
 

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