2011 Accent misfires but no code comes on. changed plugs and fixed for a week. Now its back. any ideas. Thanks.

Asked by Sep 09, 2013 at 01:08 PM about the 2011 Hyundai Accent

Question type: Maintenance & Repair

I added seafoam to the gas tank, twice. ran 6 to 8 tanks now and no change. I did the plug change twice and it fixed the problem both times for a few days.

1 Answer

This is the same problem with the plug coils. It eventually gets so bad, the light comes on. These coils go bad often. You don't know which one it is untill the code tells you. You can change them one at a time and you will get to the bad one.

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