Car Problem Reports

Toyota Highlander Ignition Coil May Fail After 100,000 Miles

Toyota Highlander Problem
13 Reports
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Model Years Affected: 2001, 2002, 2003, 2004, 2008

Average Mileage: 123,256 mi (80,000 mi - 204,000 mi)


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.

  • Visitor, , 204,000 mi

    check engine light on..4 different mechanics offered to install rebuilt engines...some with over 100000 miles for 4000-5000 honest mechanic foreign auto worcester ma. james recognized the coil problem and painstakingly went thru entire engine and rep;aced all coils for alot cheaper than what everyone was took him over 20 hours to do the job....maybe thats why most mechanics take the easy way out

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  • Visitor, , 166,000 mi

    1st time.... Car was driving fine. They just died in the middle of the road. Had to have to towed to the shop. They replaced #1 and the spark plug. $249.
    2nd time... A year later. Same thing. 177,000. Car driving fine. Stepped on the gas in the middle of a major interstate and the car died. Managed to get it over to the side without killing myself or anyone else. Towed again. They replaced #3.

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  • Visitor, , 85,000 mi

    Engine running rough first mechanic replaced #1 coil and also ran an engine cleaner thru engine . Within week or two engine running rough again and second mechanic replaced same coil which went bad again

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  • Visitor, , 85,000 mi

    One coil went bad, at 84000 miles. My mechanic told me to replace all four, at same time. Replaced all four, then had 2 more replaced within a year that went bad. Now have another bad, which totals 7 that need replaced within a years time. If anyone would have any answers that would be great. I worked in a factory and understand that quality cannot be perfect all the time.

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  •  Rookie

    VSC light on and engine light flashing. Took to Toyota dealer to be fixed. Within 40 miles of having the new coils installed the VSC and engine light are both on. Took back to the dealer they reset codes, but think it may be the catalytic converter for a cost of $3200 (parts & labor)to replace. But after reading information on the website... I'm not sure if they checked the air filter hose connection so will check that first before replacing the catalytic converter.

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  • Visitor, , 120,000 mi

    Two ignition coils went out within a week.

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  • Visitor, , 126,000 mi

    VSC light on, engine light on, repair shop says rodents ate through coils and they have to pull whole engine to repair/replace, parts alone $1400 tot al cost about $3k maybe more. Not sure if worth fixing on a 7 year old car...

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  • Visitor, , 93,000 mi

    We were driving at HWY speed, the check engine light came on, the engine produced a severe shutter (aprox. a 4 cycle very rapid succession) in a total time of one second. It felt as though the engine was turned on and off very rapidly at each cycle. Then the check engine light began to flash for about 10 seconds then stayed on solid. We took it straight to the shop and it logged a PO356 code found to be a bad ignition coil.

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  • Visitor, , 152,300 mi

    Check Engine, VSC and Trac Off warning lights all lit; engine idles rough; code indicates cylinder 3 misfiring. Replaced ignition coil.

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  • Visitor, , 115,181 mi

    Check engine and VSC lights came on. Mechanic replace 6 plugs, rotated coils and replace 1 through process of elimination. Lights were able to be reset and car drove fine in the parking lot. 5 minutes later on the his gbway, check engine and VSC lights came back on, and running rough again. Going g to have to coils replaced at ~$150/EA.

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