One problem related to gasoline fuel system has been reported for the 1999 Subaru Outback. The most recently reported issues are listed below.
Fuel filler tube corrosion causes leak of fuel and fuel vapor. Check engine light illuminates code p0440 (evap emissions malfunction). Fuel filler tube and valve assembly parts cost is $200. Labor $275. Common problem on Subarus that should be investigated and recalled due to fuel vapor leakage poses an environmental safety hazard.
| Gasoline Storage problems | |
| Gasoline Fuel System problems | |
| Fuel Hoses Lines/piping And Fittings problems | |
| Fuel Injection problems |