Rough idle, hesitating

Poor Richard · 02-26-2022, 12:34 PM

Might not necessarily be pertinent to your situation but is it a turbo engine?

Also, this mileage thing about coils dying around 100k I'd have to disagree with. My Tundra has 230k, factory coils. My wife's Forester, 128k. In all the vehicles I've owned that were well over 100k, I've replaced a total of 5 coils........4 of them were replaced because, as I mentioned, I bought non factory coils and two died within a year.

Also, in my opinion, your vehicle is new enough that if there were a misfire related to a coil your ECU would almost certainly have seen a constant CEL or perhaps a flashing CEL during the misfires.

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02-26-2022, 12:34 PM	#19
Poor Richard Senior Member Join Date: Aug 2017 Location: The humbling river Posts: 304 Thanks: 42 Thanked 80 Times in 57 Posts	Might not necessarily be pertinent to your situation but is it a turbo engine? Also, this mileage thing about coils dying around 100k I'd have to disagree with. My Tundra has 230k, factory coils. My wife's Forester, 128k. In all the vehicles I've owned that were well over 100k, I've replaced a total of 5 coils........4 of them were replaced because, as I mentioned, I bought non factory coils and two died within a year. Also, in my opinion, your vehicle is new enough that if there were a misfire related to a coil your ECU would almost certainly have seen a constant CEL or perhaps a flashing CEL during the misfires.