In your Ford vehicle, the Ford fuel sending unit is usually made up of a metal rod, a resistor, a float and a wiper and is used to tell the gas gauge how much fuel is in the tank. The float is made of foam and is attached to the thin metal rod with one end of the rod connected to the variable resistor. The variable resistor is an electrical device connected on one side to the ground and has a
. strip that resists the flow of electricity. Along this strip of material is a wiper that's linked to the gauge. Any one of these components can fail. If you suspect your fuel gauge is giving inaccurate readings, have it inspected right away. The problem may lie with the Ford fuel sending unit which might require replacement.
