Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUBARU2012IMPREZA WRX STI F4-2.5L DOHC TURBOREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSFUEL LEVEL SENSORSERVICE AND REPAIRFUEL SUB LEVEL SENSOR
2012 Subaru Impreza WRX STI F4-2.5L DOHC Turbo
Fuel Sub Level Sensor
2012 Subaru Impreza WRX STI F4-2.5L DOHC TurboSECTION Fuel Sub Level Sensor
Fuel Sub Level Sensor
REMOVAL
WARNING: Place "NO OPEN FLAMES" signs near the working area.
CAUTION:
- Be careful not to spill fuel.
- If the fuel gauge indicates that two thirds or more of the fuel is remaining, be sure to drain fuel before starting work to avoid the fuel to spill.
1. Release the fuel pressure.
2. Drain fuel.
3. Disconnect the ground cable from battery.
4. Remove the rear seat cushion.
5. Remove the service hole cover.
6. Disconnect the connector from the fuel sub level sensor.
7. Disconnect the quick connectors of fuel delivery tube (A), fuel return tube (B), and jet pump tube (C).
8. Remove the rubber cap (D) from the nut.
9. Remove the bolts and nuts which hold fuel sub level sensor protector and fuel sub level sensor upper plate to the fuel tank.
10. Remove the fuel sub level sensor from the fuel tank.
INSTALLATION
Install in the reverse order of removal while being careful of the following.
- Make sure the sealing portion is free from fuel or foreign matter before installation.
- Align protrusion (A) of the gasket to the position shown in the figure.
- Align protrusion (B) of the fuel sub level sensor to the cutout in the fuel sub level sensor upper plate.
- Tighten the nuts and bolts to the specified torque in the order as shown in the figure.
- After tightening, install the rubber cap (C) at the position shown in the figure.
NOTE:
- Use a new gasket.
- Do not forget to install rubber cap (C).
Tightening torque: 4.4 N.m (0.4 kgf-m, 3.2 ft-lb)
REMOVAL
WARNING: Place "NO OPEN FLAMES" signs near the working area.
CAUTION:
- Be careful not to spill fuel.
- If the fuel gauge indicates that two thirds or more of the fuel is remaining, be sure to drain fuel before starting work to avoid the fuel to spill.
1. Release the fuel pressure.
2. Drain fuel.
3. Disconnect the ground cable from battery.
4. Remove the rear seat cushion.
5. Remove the service hole cover.
6. Disconnect the connector from the fuel sub level sensor.
7. Disconnect the quick connectors of fuel delivery tube (A), fuel return tube (B), and jet pump tube (C).
8. Remove the rubber cap (D) from the nut.
9. Remove the bolts and nuts which hold fuel sub level sensor protector and fuel sub level sensor upper plate to the fuel tank.
10. Remove the fuel sub level sensor from the fuel tank.
INSTALLATION
Install in the reverse order of removal while being careful of the following.
- Make sure the sealing portion is free from fuel or foreign matter before installation.
- Align protrusion (A) of the gasket to the position shown in the figure.
- Align protrusion (B) of the fuel sub level sensor to the cutout in the fuel sub level sensor upper plate.
- Tighten the nuts and bolts to the specified torque in the order as shown in the figure.
- After tightening, install the rubber cap (C) at the position shown in the figure.
NOTE:
- Use a new gasket.
- Do not forget to install rubber cap (C).
Tightening torque: 4.4 N.m (0.4 kgf-m, 3.2 ft-lb)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.