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Missfire 1346 only when car is hot 03 sonata 2.7

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Runs great when cold gets hot engine missfires cylinders 1346

Vehicle: Hyundai Sonata 03 2.7

1 Answer

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Hi there

This sounds like a possible issue with the ignition coil. Once it get's hot it stops firing like it should causing the misfires. I would start by replacing the ignition coil, then take it from there.

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