Misfire code
Thread Starter
Heel & Toe
Joined: Jun 2014
Posts: 23
Likes: 0
Misfire code
So I was driving yesterday and I see the check engine light on. Carmax says its a misfire code and its gonna have to go to the dealer. Anyone have any experience with a misfire code? Car is a 2012 with 5k on it.
Burning Brakes
Joined: Nov 2010
Posts: 1,043
Likes: 17
From: Western Kentucky
Without knowing the exact code you won't get a definitive answer. My suggestion is to pull the covers over the coil packs and check to make sure that a plug wire has not come loose or fallen out of one of the coils. Good to check them at the spark plugs while in there.
Le Mans Master
Joined: Feb 2007
Posts: 8,514
Likes: 235
From: Currently somewhere in IL,IN,KY,TN,MO,AR,MS,AL, or FL
Well, here's an unusual thread. I agree totally with every reply you have gotten so far. Loose plug wire is most common cause but without knowing which of the dozens of "misfire" codes....
Race Director
Joined: Mar 2010
Posts: 16,007
Likes: 827
I realize how displeasing it can be when faced with a lit check engine light, and though you're seeking thoughts and opinions, I would be happy to communicate this situation with the designated Customer Experience Manager at your preferred dealer if you feel an official diagnosis is necessary. Feel free to message us privately if you'd like to proceed, or discuss this situation further.
William R.
Chevrolet Customer Care
Le Mans Master
Joined: Jun 2013
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From: Colorado
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Check plug wires. 
