Car Problem Reports

Ford F-150 Heritage Ignition Coil Failure Due to Excessive Spark Plug Gap

Ford F-150 Heritage Problem
3 Reports
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Model Year Affected: 2004

Engines Affected: 4.2L V6, V8

Average Mileage: 89,500 mi (52,000 mi - 127,000 mi)


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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