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.

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HOMESERVICE MANUALSSUBARU2004OUTBACK LIMITED, 4D SEDAN, EJ259REPAIR AND DIAGNOSISENGINE MECHANICALCOOLING SYSTEM (MECHANICAL)ENGINE COOLING SYSTEM (H4SO)RADIATOR SUB FAN SYSTEMINSPECTION

2004 Subaru Outback Limited, 4D Sedan, EJ259

Radiator Sub Fan System: Inspection

2004 Subaru Outback Limited, 4D Sedan, EJ259SECTION Inspection

NOTE: Radiator sub fan system is for model with A/C.

DETECTING CONDITION:
1. Condition (1):
  - Engine coolant temperature is below 95°C (203°F)
  - A/C switch is turned ON.
  - Vehicle speed is below 19 km/h (12 MPH).
2. Condition (2):
  - Engine coolant temperature is above 100°C (212°F)
  - A/C switch is turned OFF.
  - Vehicle speed is below 19 km/h (12 MPH).
TROUBLE SYMPTOM:
- Radiator sub fan does not rotate under conditions (1) and (2) above.
Fig 1: Trouble Symptom Chart (1 Of 2)
Courtesy of SUBARU OF AMERICA, INC.

RENDER: 1.0x

NO RELATED

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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.