do I have to replace both the coil pack and plug. Is the a problem with the head?
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Ask Your Question2006 Hummer H3
Question: misfiring. checked in on a diagnostic cylinder one is coded misfiring
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Answer #1
Bret Bodas from RepairPal Test Shop, February 27, 2010, 18:31ReplyMasterHere is some info about the misfiring cylinder: http://repairpal.com/OBD-II-Code-P0301
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Best Answer
Visitor, October 24, 2010, 17:25ReplyI have a 2006 H3 Hummer and had same problem, had to change all Ignition coils on engine, easy fix same coils fit 5 cyl chevy traverse.
Flag ThisLike | 3 people like this3
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