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.
2005 Subaru Outback RFACTORY OEM SERVICE PROCEDURE
Fuel System Trouble in General: Inspection
FUEL SYSTEM TROUBLESHOOTING
| Trouble and possible cause | Corrective action | |
|---|---|---|
| 1. 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 dust or water in the fuel filter | Replace fuel filter, clean or replace fuel tank. |
| d) | Clogged or bent fuel pipe or hose | Clean, correct or replace the fuel pipe or hose. |
| e) | Air mixed in the fuel system | Inspect or retighten each connection part. |
| f) | Clogged or bent air breather tube or pipe | Clean, correct or replace air breather tube or pipe. |
| g) | Damaged diaphragm of pressure regulator | Replace |
| 2. Leakage or blow out of fuel | ||
| a) | Loosened joints of the fuel pipe | Retighten. |
| b) | Cracked fuel pipe, hose, and fuel tank | Replace. |
| c) | Defective welding part on the fuel tank | Replace. |
| d) | Defective drain packing of the fuel tank | Replace. |
| e) | Clogged or bent air breather tube or air vent tube | Clean, correct or replace air breather tube or air vent tube. |
| 3. Gasoline smell inside of compartment | ||
| a) | Loose joints at air breather tube, air vent tube, and fuel filler pipe | Retighten. |
| b) | Defective packing air tightness on the fuel saucer | Correct or replace the packing. |
| c) | Inoperative fuel pump modulator or circuit | Replace. |
| 4. Defective fuel meter indicator | ||
| a) | Defective operation of fuel level sensor | Replace. |
| b) | Defective operation of fuel meter | Replace. |
| 5. Noise | ||
| a) | Large operation noise or vibration of fuel pump | Replace. |
NOTE:
- When the vehicle is left unused for an extended period of time, water may accumulate in the fuel tank. Fill fuel fully to prevent those problem. And also drain the water condensation from fuel filter.
- In snow-covered areas, mountainous areas, skiing areas, etc. where ambient temperatures drop below 0°C (32°F) throughout the winter season, use water removing agent in the fuel system to prevent freezing fuel system and accumulating water. Fill the water removing agent each time the fuel is reduced to half to maintain the advantage.
- When water condensation is noticed in the fuel filter, drain the water from both the fuel filter and fuel tank or use water removing agent in the fuel tank.
- Before using water removing agent, follow the cautions noted on the bottle.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.