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.
Installation Procedure
- Correctly position the spark plug washer.
- Inspect the spark plug gap. Adjust the gap as needed.
Specification: Spark plug gap: 1.524 mm (0.060 in)
- Hand start the spark plug in the corresponding cylinder.NOTE: Refer to Fastener Notice in Cautions and Notices.
- Tighten the spark plug.
Tighten:
- Tighten the plug to 20 N.m (15 lb ft) for USED heads.
- Tighten the plug to 30 N.m (22 lb ft) for NEW heads.
- Install the spark plug wire. Refer to Spark Plug Wire Replacement .
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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