F 350 2WD Pickup V8-7.3L DSL (1988)
Fuel Gauge: Description and Operation
Magnetic Fuel Indicator
This fuel level indicating system consists of a sending unit attached to the fuel reservoir and a fuel gauge mounted on the instrument panel. The
magnetic fuel indicator gauge creates a polarity in the wire windings which, depending on the resistance at the sender, controls the degree of pointer
rotation. This gauge operates on battery voltage. The fuel sender consists of a variable resistor, controlled by the action of an attached float in the fuel
tank(s). Resistance should be 160 ohms (full tank) and 15 ohms (empty tank).
