Hyundai Sonata LF: Ignition System / Spark Plug Specifications

Spark Plug Description and Operation

Description A spark plug is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture therein by means of an electric spark, while containing combustion pressure within the engine...

Spark Plug Repair procedures

Inspection [On vehicle inspection] 1. Accelerate the engine to about 3,000 rpm 3 times or more. 2. Remove the spark plug. 3. Check the spark plug visually...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Rear Door Latch Components and Components Location

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Hyundai Sonata LF 2014-2019 Service Manual: Curtain Airbag (CAB) Module Repair procedures

Removal 1. Disconnect the battery negative cable and wait for at least 3 minutes before beginning work. 2. Remove the roof trim. (Refer to Body - "Roof Trim Assembly") 3. Disconnect the curtain airbag harness connector. 4. After loosening the mounting bolts and nuts remove the curtain airbag...