Engine Misfire Due to Faulty Ignition Coil on Kia Sorento

An engine misfire may develop due to a failed ignition coil. Our technicians tell us one coil is used for each cylinder. If one fails, often times another is not far behind. It may be worth considering replacing all the coils if a failure is encountered.

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Average mileage: 116,924 (68,000–180,000)
7 model years affected: 2003, 2004, 2005, 2006, more2007, 2011, 2015
32 people reported this problem
18 people shared problem details
2005 Kia Sorento92,000
Rough idle, hesitation on acceleration. Autozone shows mis-fire on #4 cylinder.
2004 Kia Sorento118,000
My Sorento has been driving a little rough, this morning when I turned the car on it was shaking a bit, when I started to drive the check engine light would come on whenever my foot was on the gas. Brought it to my mechanic, he told me one of my ignition coils were bad and the other 2 were on their way out soon. Replaced the bad one today ($300), next week replacing the other 2 ($600).
2006 Kia Sorento81,500
This is the second time I have had the problem. No warning, the engine starts to run rough then the engine light comes on.
2005 Kia Sorento155,000
Cylinder 3&6 misfire replaced coil still misfires when i put foot on gas pedal. Swapped coil to different plug but misfire did not change cylinder
2004 Kia Sorento80,000
had JUST had tune-up done--next day, #'s 1 & 4 ignition coils go bad
2003 Kia Sorento110,664
I being having the same problem, Mechanic don'twant to deal with this problem. I have paid different shops and cannot find the problem... all they tell me is the the code shows missfire from the ignition.
Doesn't start all the time
2003 Kia Sorento68,000
my car has been misfire and the ocde came up for ingnition coil
breakup at acceleration, replaced all three coils on left side of engine, running fine now!
2011 Kia Sorento90,000
Driving along fine, stopped for a stop light, and the car started shuddering and check engine came on. Took to my local mechanic, the #3 engine coil is completely burned to shit - said he'd never seen anything like it. Didn't even have the car running, and took the cover off and the part was too hot to touch!? Have replaced all (4) break pads, wiring (chewed), and now this within four weeks. Nearly $1,000 to it in a MONTH and (3) separate occassions into the shop. They say bad things come in threes - here's hoping becaue I'm ready to sell this POS!!!! Good luck to the rest of you.
2005 Kia Sorento121,000
#4 coil pack bad
2007 Kia Sorento122,000
I have same problem.
2005 Kia Sorento145,520
car began turning over by itself, no one around, now have no control power to starter, etc.checked ignition switch,have power there. friend suggested lock/unlock or the remote but that hasn't worked since wife broke the remote a year ago. HELP
2004 Kia Sorento180,000
Engine idling rough at very low idle. Clears up in colder weather, worse in warmer weather. Check engine light didn't go on at first, and mechanics couldn't figure it out. When engine light came on, code indicated ignition coil failure. Tested to be sure that is what it was by switching out coil, and verified which coil was out. Replaced it and problem returned shortly. Another coil out. Mechanics say they will replace only when they fail .. no need to replace them before they fail because it wont leave me stranded and they can get it done in a couple of hours while I am at work. Love my mechanics, and love my Kia!
2005 Kia Sorento100,000
Coils burn up still in shop
2006 Kia Sorento117,000
The engine check light became on. After checking with autozone, it came out to be misfire in two or three cylinders.
2005 Kia Sorento110,000
A month ago the engine started to run rough like a misfire and check engine light came on. Brought to my mechanic and replace the ignition coil..$300.00. Now a month later, the same thing has happened. Call my mechanic and he he going to look at it today...11/15/14. I can't believe this is not a recall problem! Never had coils go bad this soon.
2003 Kia Sorento130,000
Firing problem cylinder #6. Solved by replacing ignition coil
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