Causes Of Ignition Coil Problems and Failures
It may be surprising to learn that the leading causes of ignition coil failures have nothing to do with the coils themselves. Ignition coil damage is often caused by underlying issues never addressed in engine misfire repairs. Issues like spark plug gapping, leaking valve covers or moisture intrusion.
The Effect Of Flash-Over On Ignition Coils
When diagnosing ignition components due to misfire codes, inspect the ignition coils, coil-on-plug boots and spark plugs as a complete system.