Ignition Coil Failure Due to Excessive Spark Plug Gap on Ford Expedition

Submitted by Vehicle Owner · May 29, 2025
Published by RepairPal

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.

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