I used this product(s) along with the other parts listed below on a 2009 Kia Rio with 69,000 miles. I got a misfire code on cylinder 2. The car suddenly started to run very restlessly. I think it was a bad spark plug but I replaced the coil packs, spark plugs and wiring harness anyway. Please see my detailed review located under the harness (I bought the more expensive harness because it was said to be weatherproof, it had 1 day delivery to my location and free returns). I think the other one was about $10 cheaper. I'm sure the car was ready or about to do coil packs and spark plugs anyway. Coil packs from online Kia dealers are $82 each, which is $328 for 4 of them. I am sure you will have more of these at your local Kia dealer. I'll keep the old ones so I have a spare. Not sure how long they will last, but probably for a long time since everything is made in communist China anyway. They probably stole the exact design, but it's good for you if you need them. I went with the Autolite Platinum forks as that was probably the problem. Platinum forks last longer and come with a 4 year warranty. Here are other parts to work with: Small coil pack wire harness (good idea to replace due to aging and exposure to extreme heat): https://www.amazon.com/gp/product/B018OB46BA/ref=ppx_yo_dt_b_asin_title_o02_s00?ie= Platinum spark plugs UTF8&psc=1 (better than originals for almost the same price): https://www.amazon.com/Autolite-AP3923-Platinum-Spark-Plug/dp/B000C1ZLI8/ref=sr_1_1?dchild=1&keywords=autolite+ ap3923&qid= 1593535628&s=automotive&sr=1-1My Rio can works like new again. I think the parts are the same for the Hyundai Accent, they are both made by the same company. However, I'm not 100% sure about that. You'll need a 5/8" spark plug boot, a 12" extension, a 3/8" ratchet and a 10mm socket, and that's it. Best to work 1 hour. Try this when the car is cold. Hope this helps others with the same problem :-) Please wear a mask for others.
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