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Old 11-26-2019, 08:55 PM   #106
Ed in Maine
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Join Date: May 2010
Location: Washington Cty., ME or Flagler Cty., FL
Posts: 1,106
Default Re: Sudden rough running, out of ideas

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These are very good suggestions to follow up on. You might try running the engine in the dark to see if there is any arcing around the coil, distributer or plugs which would result in a miss fire. You may have a cracked plug porcelain or distributer body. Good luck, Ed
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