Problem overview
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.
15 people reported this problem
3 commentsFord F-350 Super Duty vehicles with this problem
8 model years affected
Average mileage: 140,000 miles
(68,000 - 230,000)
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