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Fuel Level Sensor: Inspection

NOTE: When inspecting the fuel level sensor, perform the work with it installed to the fuel pump.
  1. Measure the fuel level sensor float position.
    Fig 1: Measuring Fuel Level Sensor Float Position
    G06344818Courtesy of SUBARU OF AMERICA, INC.
    FLOAT POSITION CHART

    Float position Standard
    FULL to Fuel tank seating surface (A) 135 ± 4 mm (5.315 ± 0.157 in)
    EMPTY to Fuel tank seating surface (B) 23.7 ± 4 mm (0.933 ± 0.157 in)
  2. Measure the resistance between fuel level sensor terminals.
    Fig 2: Measuring Resistance Between Fuel Level Sensor Terminals
    G06344819Courtesy of SUBARU OF AMERICA, INC.
    FLOAT POSITION CHART

    Float position Terminal No. Standard
    FULL (A) 1 and 4 2.0 ± 1.0 Ω
    EMPTY (B) 31.9 ± 1.0 Ω
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