Check Engine Light due to worn spark plugs on Ford Expedition
Problem overview
An illuminated Check Engine Light may indicate that the spark plugs are worn; this will cause intermittent misfire and damage to the coil packs.
26 people reported this problem
5 commentsFord Expedition vehicles with this problem
9 model years affected
Average mileage: 172,742 miles
(117,000 - 240,000)
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