Replacing Spark Plugs going with NGK Iridium IX?

2014 KIA SOUL
120,000 MILES • 2.0L • 4 CYL • 2WD
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BOSTONBOATSWAIN
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Replacing Spark Plugs - going with NGK IRIDIUM IX (don't need longevity of the Lasers)

Thought I use 3/8 socket to remove plugs but keep seeing multiple #'s.

Can someone please tell me what I need to buy? 14mm ...16mm...3/8...5/8 .. ?/16????

Completely lost.

Thanks,
Diane P
Aug 31, 2024 at 3:43 PM
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STRAILER
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5/8-inch (16mm) Spark Plug Socket: This socket size is standard for many spark plugs, including the NGK Iridium IX that you're planning to use. Here is how the job is done correctly in the images below. I would replace the ignition coils as well and service the throttle body.

https://www.2carpros.com/articles/how-to-tune-up-a-car-engine

and

https://www.2carpros.com/articles/throttle-actuator-service

Check out the images (below). Let us know if you need anything else.


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Aug 31, 2024 at 5:49 PM
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BOSTONBOATSWAIN
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With the pics, instructions and videos, I'm able to do all 3 by myself. Thanks!
Aug 31, 2024 at 9:10 PM
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STRAILER
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Good to hear, please use 2CarPros anytime we are here to help :)
Sep 1, 2024 at 10:50 AM