What is your question?
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What is your question?
truck is running rough
2 Replies
The OBD II Code P0303 means Misfire Detected in #3 Cylinder. Learn more in this page; http://repairpal.com/OBD-II-Code-P0303
More then likely u gonna need a new Coilpack. Witch is a easy fix but it may need a plug but I'd replace all plugs & that one coilpack .