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cylinder
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  1. STS Forum - 2005-2012
    I have an 07 STS with the 3.6L V6 and have been chasing a misfire on cylinder 3 for the past month or so. If I’ve read correctly, cylinder 3 (and ignition coil C) is the middle one on the passenger side. So I’ve replaced the spark plug and the ignition coil as well as both valve cover gaskets...
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