2007 Hyundai Accent Ignition Coil

LISAINSEATTLE

MEMBER
2007 HYUNDAI ACCENT

Shakes or Wobbles problem
2007 Hyundai Accent Front Wheel Drive Manual 24000 miles

I have had 3 coils replaced over 15 months and my engine light just went on again so make it 4 after tomorrow. The dealer has told me they are just bad parts, but I think there's something else wrong. They tell me the codes P0300, P0301 confirm it's the coils and there's nothing else to check - I say they're wrong. I have no confidence driving this car once the coil is replaced again (apparently there are 2, so the 2 originals have been replaced and one of their replacements). The car will run rough (like it wants me to downshilft, I'll notice a slight burning smell, and then the check engine light comes on. I need some info to take to the dealer to suggest where they might start looking. Thank you.

5 Replies

RACEFAN966

MECHANIC
5,029 POSTS

P0300 and P0301 are missifre codes. The 300 code is random missfire and 301 is cylinder one missfire. So it could be plugs plug wire or coil. With out some ohms tests you won't know for sure.

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Sunday, March 8th, 2009 AT 3:37 PM

LISAINSEATTLE

MEMBER
3 POSTS

Uh, I do know for sure, and frankly that's the same kind of answer I'm getting from the mechanics and why I've been there for the same thing 4 times over 14 months. OK - it's the ignition wire, but what's MAKING that particular part fail is my problem and what I can't seem to get anyone to consider.

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Sunday, March 8th, 2009 AT 3:53 PM

RACEFAN966

MECHANIC
5,029 POSTS

Ok there only way to know is to do some tests with a digital multi meter and see what voltages are and ohm's and such. Are you replacing the same coil everytime?

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Sunday, March 8th, 2009 AT 3:56 PM

LISAINSEATTLE

MEMBER
3 POSTS

The first time they just said "found coil to be bad, installed new coil. This was Feb 08.

The second time "car is misfiring on cyl # 3, swapped coils with cyl #1 and misfire moved to #1 cyl, replaced cyl #3 coil. This was Dec 08. I asked at the time and he said there were 2 coils and this was a different one from the first time. So if there are 2, both that came with the car were replaced.

The third time was Jan 09. "Swapped coil 2 and 4, miss moved to cly 4, swapped coils back and replaced coil 2". At the time I told them I had no confidence driving the car off the lot, but he said I was just experiencing a bad batch of coils(!).

The fourth time was today and I haven't had it checked yet, but I'm sure it's the same thing.

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Sunday, March 8th, 2009 AT 4:09 PM

DOCHAGERTY

MECHANIC
9,601 POSTS

I appreciate your position regarding your confidence in the way that the problem was corrected by Hyundai. I do have some experience with the quality control issues that the other car makers who use the same electronic suppliers that Hyundai does and I have expressed myself regarding this issue in the BMW realm of this forum. The thing that comes to my mind is, what are you doing about it. There is a Lemon law in some states, but that only applies if the problem cant be fixed in three tries and they did not replace all the coils at the same time. You say you have a confidence issue, BMW was buying coils from the same manufacturers as Hyundai and we were installing them at a rate of several hundred a day, I am not kidding. Let them replace the coils, stress to the service manager that this is a documented concern, let them do the best that corporate will let them, and then if there is no joy, you can sue the little weasels, sound like a plan?