Question about 2003 Ford Expedition

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2003 Expedition engine light flashes on/off when eccellerating took to Auto zone, code was P0301, changed out plug and COP still doing smaething. It sputters when accelerating. What wrong with it?

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First, are you certain you changed the plug for number 1? If so, check the power connection to the COP. If it is dirty or loose that can cause a misfire also.

Posted on Sep 14, 2010

  • roglilboy Aug 23, 2011

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