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Fuel systemPart report

1999 Subaru Outback Fuel system Problems

Complaints
4about this part
Share
4%of 111 total for the year
Median mileage
136,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the fuel system of the 1999 Subaru Outback, 4% of the 111 complaints for this model year. Where a mileage was given, the median is 136,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“My 1999 Subaru Outback wagon issued a cel with a 440 code. In finding the source of the problem, I discovered that the gas fill pipe below the gas cap has rotted out and has developed, holes leading to raw gas spillage and failure of the emissions system. The design of the cover around the outside of this pipe caused the accumulation of dirt and debris over the years that has rusted the pipe from the outside in. This is a poor design that allows the dirt to collect here. There is nothing in the manual that indicates any cleaning of this area is required to prevent this from occurring.”

NHTSA complaint #10212187, filed 2007-12, 122,000 miles

“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.”

NHTSA complaint #10283295, filed 2009-09, 150,000 miles

“Vehicle has been experiencing hesitation after accelerating from a stopped position, this problem has been occurring every day and the dealer can find no remedy for it, the mechanics say it is a fuel problem and have had the consumer use high octane gas, the fuel filter was plugged and the dealer found the fuel was contaminated, all the work that has been completed on this vehicle has not remedied the hesitation problem.”

NHTSA complaint #557752, filed 2000-11

“There are several issues going on with my 1999 Subaru legacy Outback vehicle: 1) the check engine light goes on when the fuel gauge drops down to empty although the gas tank was just filled with gas. 2) the fuel gauge does not read correct. After the gas tank is full, the gauge fluctuates back and forth (sometimes the gauge reads near empty, sometimes the gauge reads 3/4 of the tank full) when operating the vehicle. 3) the car did not pass the california smog test. 4) the RPM gauge does not stay constant while driving at an even speed. …”

NHTSA complaint #10005527, filed 2003-02

Fuel system: other model years

YearComplaintsShare of year
202534%
202422%
202322%
202261%
2021103%
2020152%
2019323%
2018466%
2017162%
2016132%
2015184%
2014136%
2013155%
201241%
2011162%
201051%
200977%
200831%
200765%
20064014%
2005197%
200467%
200344%
20023222%
20013219%
2000126%
199944%
199843%
199756%
199624%

Other parts of the 1999 Subaru Outback

Transmission and drivetrain
29 complaints
Engine cooling
23 complaints
Suspension
13 complaints
Brakes
9 complaints
Vehicle speed control
9 complaints
Electrical system
8 complaints
Air bags
7 complaints
Other or unknown
6 complaints
Latches, locks and linkages
5 complaints
Body and structure
4 complaints
Visibility (wipers, defrost, mirrors)
4 complaints
Seat belts
3 complaints

← All problems reported for the 1999 Subaru Outback

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology