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 MANUALSSUBARU2004BAJA BASE, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCEIGNITION SYSTEMIGNITION (H4SO)SPARK PLUGREMOVALRH SIDE

2004 Subaru Baja Base, Standard

RH Side

2004 Subaru Baja Base, StandardSECTION RH Side

Disconnect ground cable from battery.

Fig 1: Disconnecting Ground Cable From Battery
Courtesy of SUBARU OF AMERICA, INC.
Remove air cleaner case. Refer to REMOVAL , Air Cleaner Case.
Remove spark plug cords by pulling boot, not cord itself.

Fig 2: Removing Spark Plug Cords By Pulling Boot
Courtesy of SUBARU OF AMERICA, INC.
Remove spark plugs with the spark plug socket.

Fig 3: Removing Spark Plugs With Spark Plug Socket
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.