Question about 2002 Ford Excursion

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Not firing on 3 cylinders. changed plugs and coil packs, didn't help

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Hello there:
Just out of curiosity did you change the ignition controle module this sits under the coil packs that is bolted to the engine This tells the plugs when to fire and it can fire on half of it and have the other half not work this is one of the first things that will fail and give this type of a problem also you may want to check the crankshaft sensoer and the camshaft sensor too.
Ok hope this helps alot
Best regards Mike

Posted on Oct 01, 2010

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Posted on Jan 02, 2017

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