2004 Subaru Baja Fuel system Problems
- Complaints
- 10about this part
- Share
- 56%of 18 total for the year
- Median mileage
- 90,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 10 complaints about the fuel system of the 2004 Subaru Baja, 56% of the 18 complaints for this model year. Where a mileage was given, the median is 90,000 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.
“I have fuel leaking from the fuel lines on the drivers side to the right of the alternator. I am assuming one or both of these fuel lines are cracked. The fuel leaks when it is cold and stops leaking when the engine warms up. My BAJA is also hard to start when cold. I'm thinking the fuel lines are sucking in air where cracked.”
NHTSA complaint #10447382, filed 2012-02, 60,000 miles“When temperatures drop below 40 degrees my 2004 Subaru BAJA turbo begins to leak fuel. It is leaking from the fuel line under the manifold. The odor is very strong in the cabin and in the garage when parked. The windows will fog up from the fumes being sucked when the heat is on. This problem has been occurring every winter all winter for the 4 years that I have had the car. The car only has 50,000 miles on it.”
NHTSA complaint #10654678, filed 2014-11, 50,000 miles“I noticed an extreme smell of fuel in the cabin when I started the vehicle up on an especially cold morning (<10 degrees), and I found the leak coming from one of the clamps on the fuel line right in the middle of the engine bay. The smell is very, very extreme in the early mornings when it's coldest, bad enough that my boyfriend gets nauseous from it, but it hasn't gone away at all despite it getting warmer recently.”
NHTSA complaint #10659506, filed 2014-11, 121,764 miles“I have a 2004 Subaru BAJA and fuel vapors emit from the engine. Vapors will fill cabin of the vehicle. There is a risk of fire and intoxicating fumes. These vehicles have a history of this problem. Subaru has not and will not make a commitment on a recall. 2005 and 2006 bajas have had a recall for the same problem, but I cannot get a fix because mine is a 2004.”
NHTSA complaint #10288628, filed 2009-10, 50,000 miles“Strong fuel smell in cabin when started in very cold weather and persisting even once car has warmed up. So severe as to cause nausea and fogging of interior windows. Had to drive in very cold weather with windows down to vent fumes. Diagnosed by dealer as leaking fuel lines around intake manifold (exactly like recall for 05 and 06 model years). $1200 repair estimate.”
NHTSA complaint #10690709, filed 2015-02, 90,000 milesFuel system: other model years
Other parts of the 2004 Subaru Baja
2 complaintsBrakes
1 complaintsElectrical system
1 complaintsElectronic stability control
1 complaintsEngine cooling
1 complaintsSeat belts
1 complaintsSteering
1 complaintsTransmission and drivetrain
1 complaintsVehicle speed control
1 complaintsWheels
1 complaints
← All problems reported for the 2004 Subaru Baja
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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