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 MANUALSMITSUBISHI2005LANCER EVOLUTION L4-2.0L DOHC TURBOREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTUNE-UP AND ENGINE PERFORMANCE CHECKSSPARK PLUGSERVICE AND REPAIR
2005 Mitsubishi Lancer Evolution L4-2.0L DOHC Turbo
Spark Plug: Service and Repair
2005 Mitsubishi Lancer Evolution L4-2.0L DOHC TurboSECTION Service and Repair
SPARK PLUGS (REPLACE)
CAUTION: Iridium plugs are used. Use care not to damage the iridium and platinum tips of the plugs. Do not adjust the spark plug gap.
1. Spark plugs must spark properly to assure proper engine performance and reduce exhaust emission level. Therefore, they should be replaced periodically with new ones.
Spark plug type
2. The new plugs should be checked for the proper gap.
Spark plug gap: 0.6 - 0.7 mm (0.024 - 0.028 inch)
3. Install the spark plugs and tighten to 25 ± 5 Nm (18 ± 4 ft. lbs.).
CAUTION: Iridium plugs are used. Use care not to damage the iridium and platinum tips of the plugs. Do not adjust the spark plug gap.
1. Spark plugs must spark properly to assure proper engine performance and reduce exhaust emission level. Therefore, they should be replaced periodically with new ones.
Spark plug type
2. The new plugs should be checked for the proper gap.
Spark plug gap: 0.6 - 0.7 mm (0.024 - 0.028 inch)
3. Install the spark plugs and tighten to 25 ± 5 Nm (18 ± 4 ft. lbs.).
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.