2000 Ford Focus coil pack question?

  • Thread starter Thread starter ello
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ello

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If a coil pack goes bad, will there be mis-fires in all cylinders? Or is it possible to only have mis-fire in one cylinder?
 
It's possible to have only a single portion of the pack go bad. Inside the pack are groups of copper windings. One winding for each cylinder so it is possible for only one cylinder to be affected.
 
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