Fuel System Trouble in General: Inspection

Fig 1: Fuel System Troubleshooting Inspection Chart

Courtesy of SUBARU OF AMERICA, INC.

To prevent water condensation,

1. Top off the fuel tank or drain the fuel completely.
2. Drain the water condensation from the fuel filter.
   • Refilling the fuel tank.

     Refill the fuel tank while there is still some fuel left in the tank.

   • Protecting the fuel system against freezing and water condensation.
3. Cold areas

   In snow-covered areas, mountainous areas, skiing areas, etc. where ambient temperatures drop below 0°C (32°F) throughout the winter season, use an anti-freeze solution in the cooling system. Refueling will also complement the effect of anti-freeze solution each time the fuel level drops to about one-half. After the winter season, drain the water which may have accumulated in the fuel filter and fuel tank in the manner same as that described under Affected areas below.

4. Affected areas

   When the water condensation is notched in the fuel filter, drain the water from both the fuel filter and fuel tank or use a water removing agent (or anti-freeze solution) in the fuel tank.

   • Observe the instructions, notes, etc., indicated on the label affixed to the anti-freeze solution (water removing agent) container before use.