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.
2015 Hyundai Azera BaseFACTORY OEM SERVICE PROCEDURE
Repair procedures: Inspection
- Inspect the electrodes (A) and ceramic insulator (B).
Inspection Of Electrodes
ELECTRODES CONDITION DESCRIPTIONCondition Dark deposits White deposits Description - Fuel mixture too rich
- Low air intake
- Fuel mixture too lean
- Advanced ignition timing
- Insufficient plug tightening torque
- Check the electrode gap (A).
Standard:
1.0 ~ 1.1 mm (0.0394 ~ 0.0433 in.)
Factory Service Tools
Use the Manual With the Right Hardware
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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.