SX Plugs R&R - Kia Forum

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post #1 of 96 (permalink) Old 05-11-2017, 08:46 PM Thread Starter
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SX Plugs R&R

In a previous post, having to replace a cracked plug or two on the SX's 2.0t did not seem unusual. I assume they are platinum.

Are the plugs on the 2.0t easy to get at ?

What plug brands and type are best to replace the originals with ?


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post #2 of 96 (permalink) Old 05-12-2017, 04:17 AM
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I am not sure what specific plug they are, I do know they are irridium. Getting to them is super easy. Just pull the plastic cover off the top of the engine, there should be 4 coil packs visible right on the top of the engine ,each one is held by a bolt. remove the coil packs and R&R plugs one at a time as not to confuse the coils. Be sure to use compressed air to blow any debris out of the plug area to prevent any dirt from falling into the cylinder when you pull each plug.
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post #3 of 96 (permalink) Old 05-13-2017, 10:47 AM
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NGK but not sure which...
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post #4 of 96 (permalink) Old 05-13-2017, 02:16 PM
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They may as well be Denso 3501, pull one out for make and p/n.
Denso plugs are good, there may not be NGK equivalent for your plugs.
Don't over tighten them or you can strip threads and crack the plug too.
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post #5 of 96 (permalink) Old 05-13-2017, 04:00 PM
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I searched on autozone for plugs for our vehicle, 2 results come up, not sure at all if this is accurate information:

Bosch Iridium Spark Plug 9622 - Read Reviews on Bosch Iridium #9622

Denso Iridium Spark Plug 3501 - Read Reviews on Denso Iridium #3501
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post #6 of 96 (permalink) Old 05-14-2017, 04:34 PM
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Also, do it on a cold engine.
The thing is, if you pull a plug and see a missing piece of ceramic on the tip, the problem arises of what has it done to the cylinder as it rattled around in there? You would be fortunate if it got blown out of the cylinder through the exhaust valve.
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post #7 of 96 (permalink) Old 05-14-2017, 05:22 PM
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Quote:
Originally Posted by 191145 View Post
Also, do it on a cold engine.
The thing is, if you pull a plug and see a missing piece of ceramic on the tip, the problem arises of what has it done to the cylinder as it rattled around in there? You would be fortunate if it got blown out of the cylinder through the exhaust valve.
There is no good scenario, going out the exhaust means direct impact to turbocharger vanes. That generally means time for a new turbo. If it gets past that, then it hits the Catalytic converter matrix. That's bad also.
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post #8 of 96 (permalink) Old 05-15-2017, 08:37 AM Thread Starter
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Quote:
Originally Posted by pcguy View Post
I searched on autozone for plugs for our vehicle, 2 results come up, not sure at all if this is accurate information:

Bosch Iridium Spark Plug 9622 - Read Reviews on Bosch Iridium #9622

Denso Iridium Spark Plug 3501 - Read Reviews on Denso Iridium #3501
Might be a good idea to replace the brand of plugs that cracked with another brand:
Bosch to Denso or Denso to Bosch

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post #9 of 96 (permalink) Old 05-15-2017, 08:46 AM
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Might be a good idea to replace the brand of plugs that cracked with another brand:
Bosch to Denso or Denso to Bosch
Denso is what cracked in mine
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post #10 of 96 (permalink) Old 05-16-2017, 08:52 AM
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Since the plugs are going into an aluminum head, you may want to run the engine to operating temp after the new install and then go back and re-torque the plugs (same principle as installing lug nuts on aluminum wheels). The steel plug base reacts differently to increases in temp than does the aluminum head and they may relax after being heated the first time.
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