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spark plugs

  1. CM (2007-2012) Santa Fe
    I've been digging to figure out the problems listed below without much success. Apologies for the length. I'm a newbie and don't exactly know what's relevant and what's not. I have a link to a video with the sound/exhaust output on a cold start, but it seems the forum blocks links. I can...
  2. AD (2017+) Elantra
    I'm looking into replacing my spark plugs. Does anyone know what the OEM part number is? Is there any benefit to replacing them with a non OEM brand? if so, what would you recommend? I was getting my oil changed and buddy pulled out my spark plug and showed a bit of carbon build up, and the gap...