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Home >> Hyundai >> 2017 >> Accent Value Edition >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Ignition System >> Repair Procedures >> On-Vehicle Inspection >> Inspect Spark Plug

Inspect Spark Plug

  1. Remove the ignition coils (A).
    G12016211Courtesy of HYUNDAI MOTOR AMERICA
    NOTE: When removing the ignition coil connector, pull the lock pin (A) and push the clip (B).
    G12016212Courtesy of HYUNDAI MOTOR AMERICA
  2. Using a spark plug socket, remove the spark plug.
    CAUTION: Be careful that no contaminates enter through the spark plug holes.
  3. Inspect the electrodes (A) and ceramic insulator (B).
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    INSPECTION OF ELECTRODES

    Condition Dark deposits White deposits
    Description
    • Fuel mixture too rich
    • Low air intake
    • Fuel mixture too lean
    • Advanced ignition timing
    • Insufficient plug tightening torque
  4. Check the electrode gap (A).

    Standard 

    0.9 ~ 1.0mm (0.0354 ~ 0.0394 in.)

    G12016214Courtesy of HYUNDAI MOTOR AMERICA