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Old 03-19-2009, 05:51 PM   #1 (permalink)
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2002accent32
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My standard 2002 accent is undriveable and at the mechanic right now (100,000km).
For the past few weeks the car has driven very jerky. While in first and second gears if i accelerate too quickly it just jerks/slips and has very little power.
(I've read that many others have the same problem).

Yesterday the check engine light came on and i got codes P0300, P0302, P0303...misfire in cylinders 2 and 3. Checked this forum and decided to buy new spark plugs (last replaced plugs and wires 1.5 years ago). Got into the car and could go more than a block because it was jerking and then kept stalling. Replaced the sparkplugs and nothing changed. Had it towed to the mechanic...after a few hours he said he had cleaned the exhaust manifold and it was driving fine. I picked it up and a block away it stalled again.
The mechanic now says 3 of my fuel injectors need to be replaced and the fourth will probably go soon and it will be about $700 to fix.

Does this sound right for these codes?

I called hyundai parts and they told me each injector is $236...he also told me he doubted they had to be replaced cause he has never seen an accent have fuel injectors replaced and also they rarely sell these injectors, he said it was probably something electrical.

I have found 4 injectors on ebay for $200 but is this really the problem? The mechanic says it is 100% the problem. But from reading the forum I dont think so.

Should i tow my car to another mechanic and pay this guy his $100 for the cleaning he did....even though it didnt help?

Do I buy the injectors on ebay and go a week or so without a car?

Please help...your opinions will be greatly appreciated!

Also wanted to add that i often noticed the smell of burning plastic. Smoke seems to be coming from spark plug area when i notice the smell but nothing looks burnt/melted.
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Old 03-21-2009, 09:48 AM   #2 (permalink)
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2012 Veracruz Limited AWD 2012 Sonata Limited 1966 Ply. Barracuda Formula S 273-V8-4spd-4.10gears
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273HYPO
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I once saw on ebay 4 used injectors for an '02 - '05 Accent go for $29.95 buy it now from a highly rated junkyard parts dealer. Replacing them is a bit tricky and requires a special tool, also depressurize the fuel system and be careful you don't break one in the intake manifold. How much longer do you plan on keeping your car would decide how much to put into it? Toughest part is finding a reputable mechanic you can trust. But the codes you list have multiple symptons and mechanics usually start with the cheapest fix. Since you did plugs and wires the next fix was cleaning them out like your mechanic tried. Did you test or replace the coil packs? Easy fix and both should cost you about 100 - 140 bucks. and about 15 minutes of your time to replace. I've been putting off my P0304 code which turned out to be an intake manifold gasket leak. Car runs fine, slight vibration @ idle but gets 30mpg! Codes been on for over a year and my '04 Accent has 110K miles.


Good Luck 273HYPO
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Old 03-22-2009, 01:02 AM   #3 (permalink)
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I would be highly skeptical of the injector diagnosis. I have been a Hyundai dealer tech for 6 1/2 years, and can remember replacing maybe one, or two injectors on Hyundai's in that time period. Unless someone poured sulphuric acid in your gas tank, (or other contaminant) I doubt very much if your problem is the injectors. If you have the 1.6L eng, the common item to consider would be the 2-3 coil pack. Provided the info you presented is not skewed, I would change mechanics in a heart beat.
All the best,
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Old 03-22-2009, 02:28 AM   #4 (permalink)
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2002accent32
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Thanks for your responses.

The car is a 1.5L and i hope to keep it for another 2 years.

I asked the mechanic to check the coil packs and he said he had and that the problem was 3 injectors.

I ended up buying 4 injectors on ebay for $200 and should have them on Monday.
He claims to be 100% sure and I really hope he is!

I will post back on Monday....hopefully after I've picked up my smooth running car!

Where are the fuel injectors...are they easily visible or inside something?

Would faulty/dirty fuel injectors smoke and maybe produce a burning plastic smell? (the smoke seems to come from spark plug area)
I'm convinced something is burning/melting each time i drive and maybe the mechanic is SOO sure because they look burnt.
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Old 03-22-2009, 03:05 AM   #5 (permalink)
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I found this pic from a few years ago and i noticed that there is now oil/guck built up from under the panel and around screws where the red arrows are...what would cause that?

Green circle is a coil pack right?

Thanks
Attached Images
File Type: jpg my_engine2.jpg (465.9 KB, 117 views)
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Old 03-22-2009, 02:44 PM   #6 (permalink)
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robtemple is an unknown quantity at this point
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The red arrows are pointing to severely corroded bolts. Caused either by winter time driving on salted roads, or from salt laden air at or near the ocean. Green circle is definitly the coil pack.
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Old 03-27-2009, 05:45 PM   #7 (permalink)
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So did the fuel injectors make any difference?
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Old 03-31-2009, 08:40 PM   #8 (permalink)
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My car is running much better.

When i dropped off the parts I also asked to have the fuel filter changed which I had never done.

The mechanic told me there was a "jelly" type substance in the gas tank. He said he didn't know what it was, maybe a fuel injector cleaner. I did add some sort of cleaner about 2 years ago. He said the fuel filter and injectors had the same jelly on them.

He did not clean out the gas tank and said this substance in the gas tank should burn out and not damage the new injectors....which makes no sense to me. If this jelly clogged my original injectors why wont it damage these?

My check engine light hasn't come back on and the car is running better...hope it stays this way.
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Old 05-06-2009, 08:07 PM   #9 (permalink)
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Since my last post, i've had more issues.

A few days later my checked engine light came back on with the same codes and was still sputtering/misfiring.

I took it back to the mechanic **** that he hadn't fixed the problem...he cleaned out the fuel line and it ran better. He says the problem is now probably the gunk in the tank. Although he insists he fixed the car.
I left and have been driving with the check engine light on since.

Two days ago the check engine light turned off but the car was still driving the same way...misfiring.

Today the car did not start. I called caa hoping i just needed a boost but my battery was fine. The battery guy said it might be my starter and called me a tow truck. The tow truck driver said he thought it was the fuel pump. I cranked the car while he hit the underside of the gas tank? with a bar...it wouldnt start.

I am taking the car to a different mechanic tomorrow...hopefully this one will get it right.

Any more ideas?
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Old 05-07-2009, 07:46 PM   #10 (permalink)
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It's definitely the coil packs. i just had the exact same problems this weekend with the exact same codes and i replaced both coil packs (1,4 and 2,3) and she runs like a champ. it cost me about 80 bucks for both packs. hope that helps
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