Ironblacksmith702 Posted June 22, 2021 Share Posted June 22, 2021 Just recently bought a used 2015 ford fusion with 61k miles on it. It recently started throwing check engine lights because of a cylinder 4 misfire. I changed all 4 spark plugs and coil packs and it is still doing it. What else could be happening? Link to comment Share on other sites More sharing options...
akirby Posted June 22, 2021 Share Posted June 22, 2021 Fuel injector. Link to comment Share on other sites More sharing options...
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