Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSSUBARU2004OUTBACK BASE, 4D WAGON, EJ251, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCEFUEL DELIVERYFUEL INJECTION (FUEL SYSTEMS) (H4SO)FUEL PUMPINSPECTION

2004 Subaru Outback Base, 4D Wagon, EJ251, Standard

Fuel Pump: Inspection

2004 Subaru Outback Base, 4D Wagon, EJ251, StandardSECTION Inspection

Connect lead harness to connector terminal of fuel pump and apply battery power supply to check whether the pump operate.

WARNING:

Wipe off the fuel completely.
Keep battery as far apart from fuel pump as possible.
Be sure to turn the battery supply ON and OFF on the battery side.
Do not run fuel pump for a long time under non-load condition.

Fig 1: Checking Pump Operation
Courtesy of SUBARU OF AMERICA, INC.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.