On higher mileage vehicles, an engine misfire may develop and/or the Check Engine Light may illuminate due to a failed ignition coil. It is not uncommon to replace all the coils when the first one fails in order to prevent return trips to the repair shop.
Misfire and/or Check Engine Light Due to Failed Ignition Coil on Toyota 4Runner
Average mileage: 189,000 (160,000–224,000)
12 people reported this problem
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My car seems like its loosing power whwn i press the gas and dies after idling for a min. My engine shakes like crazy too
$300 repairs to replace coil and plugs… not sure what else they did…
coil failed, caused a misfire. The spark plug blew out and knocked off the oil cap. made a lot of noise and a big mess. $1700 to fix at Sterling McCall Toyota in Katy
My car was shaking and felt like it was going to shut off. The mechanic replaced both coils for a little over $300. Seems to be working fine.