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Engine running rough

The Jas

New Member
Jun 29, 2021
4
3
3
queensland
hi has anyone had spark plugs fale after 8k. Had my i30n performance which is 9 mth old towed to a dealer today as the engine was running rough , missing & engine light was on. Dealer said that the spark plug on number 1 cylinder failed.
 

R Veloster N

Well-Known Member
Nthusiast
Mar 5, 2019
6,956
5,022
113
Rocky Mountains, US
hi has anyone had spark plugs fale after 8k. Had my i30n performance which is 9 mth old towed to a dealer today as the engine was running rough , missing & engine light was on. Dealer said that the spark plug on number 1 cylinder failed.
Cracked insulator? This was a problem in the past. Mobis Plugs weren’t up to snuff.
 

Hugh_85

Active Member
Nthusiast
Jun 11, 2018
151
188
43
SE QLD, Australia
Got the full 'life' out of my first set, they were changed at the scheduled service interval 70 thou I think, can't remember but it was a ~$700 service through the dealer
My misfire issue was put down to a faulty injector in the end.