Misfire on number 6 cylinder

Old 03-14-2018, 03:14 AM
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Join Date: Mar 2018
Posts: 1
Misfire on number 6 cylinder

I have a 01 f150 with a 4.6 in it. It ran great no problems at all. I got truck last year previous owner put new plugs and coils on it. Heater core started leaking so I just replaced that. It's all back together and now it has misfire on #6. Is there anything that it could be? Loose connection maybe or am I going to have to buy plugs and coils again
Old 03-14-2018, 09:44 AM
Senior Member
Join Date: Jan 2002
Location: Wilmington,NC
Posts: 4,644
Swap coils to see if the msfire follows the coil. Denso or Motorcraft cops should be used. Some also say Delphi. And Motorcraft plugs.

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