2013 Subaru Outback RFACTORY OEM SERVICE PROCEDURE

Fuel System Trouble in General: Inspection

Trouble Possible cause Corrective action
Insufficient fuel supply to injector a. Fuel pump does not operate.
◦ Defective terminal contact Inspect contact, especially ground, and tighten it securely.
◦ Trouble in electromagnetic or electronic circuit parts Replace the faulty parts.
b. Decline of fuel pump function Replace the fuel pump.
c. Clogged fuel filter Replace the fuel filter. Clean or replace the fuel tank if necessary.
d. Clogged or bent pipe, hose or tube of fuel line Clean, correct or replace the pipe, hose or tube of the fuel line.
e. Air is mixed in fuel system. Check the fuel line connections, and repair or replace the defective part.
f. Damaged diaphragm of pressure regulator Replace the pressure regulator.
Leakage or run-out of fuel a. Loose connection in pipe, hose or tube of fuel line Check the fuel line connections, and repair or replace the defective part.
b. Cracks in pipe, hose or tube of fuel line Replace the pipe, hose or tube of the fuel line.
c. Cracks or defective welded part of fuel tank Replace the fuel tank.
d. Clogged or bent pipe, hose or tube of fuel line Clean, correct or replace the pipe, hose or tube of the fuel line.
Gasoline smell inside of compartment a. Loose connection in pipe, hose or tube of fuel line Check the fuel line connections, and repair or replace the defective part.
b. Improper installation of rubber saucer Correct or replace the rubber saucer.
c. Defective canister Replace the canister.
Defective fuel gauge a. Defective operation of fuel level sensor Replace the fuel level sensor.
b. Defective operation of combination meter Replace the combination meter.
Noise a. Big operation noise or vibration from fuel pump Replace the fuel pump.
NOTE:
  • When the vehicle is left unattended for an extended period of time, water may accumulate in the fuel tank. Fill fuel fully to prevent the problem.
  • In snow-covered areas, mountainous areas, skiing areas, etc. where ambient temperatures drop to 0°C (32°F) or less throughout the winter season, use a water removing agent in the fuel system to prevent freezing fuel system and accumulating water.
  • When water is accumulated in fuel filter, fill the water removing agent in the fuel tank.
  • Before using water removing agent, follow the cautions noted on the bottle.
Factory Service Tools

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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.

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