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zakruti.com » Auto & Vehicles » South Main Auto Repair
Misfire Diagnosis - Kia Sedona

Misfire Diagnosis - Kia Sedona

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Rating: 4.0; Vote: 1
Let's have a look at this Kia Sedona 3. 5 V6 that has come into the SMA shop with a P0306 Misfire and a complaint of rough running in the morning. Remember don't be fooled by single cylinder misfire codes. they can be misleading! Test Don't Guess!
Date: 2020-08-05

Comments and reviews: 9


my mom had a 2001 Kia Sedona with a 3. 5 liter V6 after the transmission went out on it it was replaced along with a brand new torque converter and all 28 quarts of purple Kia automatic transmission fluid. in 2005 the coil packs on the engine started going and having the same issue and burning them up to the point where they were literally crispy. we kept on having the same issue no matter if we bought original manufactured coil Pacs or if we have bought aftermarket ones. end up getting to the point where the heater controls on the inside of the vehicle the climate controls switches and lights the radio and all that remount functioning end up having a Kia specialist flown in to the dealership where we purchased a vehicle at in West Chester Pennsylvania and they could not determine what the problem was or is until this day we still do not know. Kia of West Chester Pennsylvania still has not reimbursed my mother for the purchase of a new transmission the new torque converter new or the fluid even though it was supposed to be under a transferable warranty and to mind you that the transmission failure occurred just under six months of purchasing the vehicle via a financial institution.
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Typical. I would replace all coils wires and plugs. It needs them with that mileage anyways. Also verify those are the correct plugs for the engine. If they are not that is what might have put extra strain on the coils causing them to fail. I'm sure that would fix the issue. But even if it doesn't it was needed and especially needed to do any further diagnoses if neccesary. And I haven't seen many customers not fix something like this. My old boss at a small two bay shop with the same repeat customers for 20 years always said. If they brought it in, they want it fixed. Of coarse we would still call them, but if they couldn't be reached and we knew them well we would just fix it. That shop was like that. More like working on family's cars. Since they were the same old people over and over.
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Hello Eric I have to tell you you are a very good technician. And run a great business, I to have a small shop 3 bay and my wife is the boss. I started wrenching in 1979 and was using a lab scope in 84 bear pace400. I really enjoy watching your videos. you are also on the short list of people I approve of for my techs to watch. Also a shout out to phad and SD. they are the other 2 lol. I have been in business for 25 years and still can't wait to go to work. Have a great day
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Thanks for the videos! Part 1 and 2 helped me understand much better what's going on in my Kia Sedona 2005. I've got codes 302 and 304, so, coil 2&4 along with spark plugs 2/4/6 were changed. Also I replaced the ignition coil wiring (connectors were bad. Now, I'm getting code 306! Does it means I need to change coil 6? and/or, I should go for 1/3/5 coil & spark plugs & wiring? I'll appreciate your feedback. Keep posting videos like this, they are so helpful! . PWDR.
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I'm curious about what spark plugs are in the other half of the engine because I have seen single platinum spark plugs kill waste fire ignition coils. The negative (backwards firing) side of the ignition coil the spark has to jump from the ground electrode to the center electrode. No platinum (sharp edge) increases the KV demand especially during lean tip in.
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I know a guy who took an electrical shock from a G. M. 3800 ignition coil and it knocked his heart out of rythem. To this day he has severe atrial fibulation his heart constantly gets out of rythem and he feels like 100% shit when it happens. Don't mess with these new ignition systems voltages they are serious!
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My Wife's 06 Sorento needs coils and wires. Shoulda done that last year when I was doing the back hoses, front timing belt and water pump with the plenum removed. Don't know if the wires can come out without plenum removal. Great Video though! Water works almost every time!
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This was the exact issue I had with my first vehicle, a 1987 Toyota pickup. Whether it rained or was foggy it would misfire. Did the exact same thing, poured a cup of water over the engine and booya! sparks started flying.
Creating firework shows since 1991

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That's a good point, about being careful not to fry the scope. On their new scopes Pico use grounding wires for each capacitive pickup so hopefully any stray current would go there. Have you ever fried a test light with stray current jumping from wires?
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