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Misfire No Codes Or Lights

8401 Views 3 Replies 3 Participants Last post by  Noahbergfeldt
Hello all,
I have a 2013 cruze eco with 14,000 miles on it. It is experiencing a misfire on cylinder 2 quite a bit under load. Cylinder 1 also misfires about 1/4th as much on similar pulls. There are no lights on or codes stored. I first replaced the spark plugs with those of appropriate gaps the stock delco plugs in fact gapped at 0.30. I then moved them around to see if the misfire followed. It didn't. I then replaced the coil pack from a buddy of mines cruze and the same cylinders misfiring. Back to stock coil. I will next try moving fuel injectors around. I am hoping I don't have burnt valves or cracked pistons. It seems so unlikey with 14,000 miles but I know the engines are notorios for pistons.
Any insight would be appreciated
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