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Home >> Mercury >> 1993 >> Villager LS >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panels - Analog >> Description & Operation >> Fuel Gauge & Low Fuel Warning Lamp >> Fuel Level Indicating System

Fuel Level Indicating System

The fuel level indicating system is a magnetic-type indicating system, which consists of the fuel tank sending unit located in the fuel tank, an anti-slosh/low fuel warning module located on the back of the instrument cluster, and a fuel gauge located in the instrument cluster.

The fuel tank sending unit changes resistance according to the level of fuel in the fuel tank, which varies the current flow through the gauge. The pointer position varies proportionately to the current flow. In this system, the fuel tank sending unit resistance is low when the fuel level is low and high when the fuel level is high.

The pointer of the magnetic gauge remains in relatively the same position when the ignition is turned to OFF position.

When the fuel level drops to approximately 2.5 gallons (9.5 liters), the fuel tank sending unit supplies voltage to illuminate the low fuel warning lamp.