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Fuel systemPart report

2004 Subaru Legacy Fuel system Problems

Complaints
5about this part
Share
10%of 49 total for the year
Median mileage
127,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the fuel system of the 2004 Subaru Legacy, 10% of the 49 complaints for this model year. Where a mileage was given, the median is 127,000 miles. 1 recall campaign on record is filed under a similar system.

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.

“I was steering the car, just leaving the lot of a home improvement store. I made a right turn, drove the distance of, perhaps, a city block and moved into the left lane to make a left turn. I had to stop for a red light so I applied the brakes but the car did not want to stop. The engine began revving! The gas pedal was stuck! Feeling terrified, confused, not knowing what to do, I shoved the gear into park and turned the ignition switch to off. …”

NHTSA complaint #10313927, filed 2010-02, 34,000 miles

“Sudden deceleration. Occurred at complete standstill, 25mph and 65mph, speed appears not to be a factor. Check engine light comes on and cruise control quits and cruise light blinks and engine defaults to 1500rpm, all happens simultaneously, ergo no warning. Complete loss of gas pedal control. Intermittent problem. Can happen a few times a day or nothing for a week. Tends to happen more from a cold engine start and within 3 miles of thee start. Very dangerous if on freeway, especially in fast lane and pulling out onto street, etc.”

NHTSA complaint #10486429, filed 2012-11, 149,000 miles

“A smell of gas was present in the passenger area. I took it to my mechanic. He said the Damper Fuel Assembly (Part # 42086AE040) was leaking. It is a high pressure gas hose. Subaru no longer makes the part, making the car valueless. We tried junkyards, etc, but that part seems to be leaking on all. It is dangerous. I can drive it, perhaps, but the gas smell is in the body of the car. Subaru said it's unfortunate that the car that was worth $6-7,000 last week is worth nothing. Unless I want to drive it unsafely.”

NHTSA complaint #11505416, filed 2023-02

Related recalls

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2025117%
202011%
201954%
201887%
201743%
201632%
2015159%
201412%
201312%
201222%
201174%
201053%
200912%
200835%
20061618%
20052715%
2004510%
2003915%
20021528%
20011925%
200055%
199977%
199887%
199796%
199687%
19951810%
199447%
199323%
199224%
199111%
199045%

Other parts of the 2004 Subaru Legacy

Air bags
26 complaints
Engine
5 complaints
Vehicle speed control
5 complaints
Brakes
3 complaints
Engine cooling
2 complaints
Transmission and drivetrain
2 complaints
Electrical system
1 complaints
Other or unknown
1 complaints
Seat belts
1 complaints
Body and structure
1 complaints
Suspension
1 complaints
Tires
1 complaints

← All problems reported for the 2004 Subaru Legacy

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