Other information:
Hyundai Sonata LF 2014-2019 Owners Manual: Before Starting
Make sure the hood, the trunk, and the doors are securely closed and locked.
Adjust the position of the seat and steering wheel.
Adjust the inside and outside rearview mirrors.
Verify all the lights work.
Fasten your seatbelt. Check that all passengers have fastened their seatbelts.
Check the ...
Hyundai Sonata LF 2014-2019 Service Manual: 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. A
spar ...