Fuel Sub Level Sensor: Inspection

2014 Subaru Forester 2.5i, Eng CD FB25BA, Standard TransSECTION Inspection
WARNING: This page is about a different variant/trim than selected.
  1. Check that the fuel sub level sensor has no damage.
  2. Measure the fuel sub level sensor float position.
    Fig 1: Identifying Fuel Sub Level Sensor Float Position
    G09479882Courtesy of SUBARU OF AMERICA, INC.
    Float position Standard
    FULL to Datum point (A) 5.31Β±3.5 mm (0.209Β±0.138 in)
    EMPTY to Datum point (B) 160.6Β±3.5 mm (6.32Β±0.138 in)
  3. Measure the resistance between fuel sub level sensor terminals.
    Fig 2: Measuring Resistance Between Fuel Sub Level Sensor Terminals
    G08315563Courtesy of SUBARU OF AMERICA, INC.
    Float position Terminal No. Standard
    FULL (A) 1 and 2 8.7Β±1.0 Ξ©
    EMPTY (B) 270.9Β±4.0 Ξ©
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.