Ignition Coil Failure Due to Excessive Spark Plug Gap on Ford F-250

An illuminated Check Engine Light could indicate that one or more of the ignition coils has failed due to excessive spark plug gap. To fix this problem, the ignition coils that have failed, the spark plugs, and all coil boots should be replaced.

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Average mileage: (–)
2 model years affected: 1998, 1999
2 people reported this problem
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