DIY - How to Diagnose Bad Spark Plugs & Ignition Coils!

[@lowerclassbrats77]

I took my Hyundai Accent to the dealer (1st mistake) for a diagnostic for engine surging. They diagnosed it as a bad ignition coil. They quoted me a repair cost of $1200.00usd. I did 5 min of research (watched you tube vid). I bought the parts for $230.00 and fixed it myself in 15 minutes. I changed all 4 spark plugs and all 4 ignition coils so I didn't have to play the process of elimination game. Do yourself a favor and do a modicum of research prior to paying someone to do something you could do without breaking a sweat. The price I was quoted should be classified as a crime. Pay for the diagnostic at a place like Midas where it's cheaper and fix it yourself, depending on the degree of difficulty.

[@8020Media]

L - That's our exact goal, to assist anyone, regardless of automotive skill level, to be able to DIY issues. Thanks for sharing your experience!

[@HeydaCarreras]

and you paid too much. $ 230.00? no way.

[@vitech1013]

@@HeydaCarreras Agree - $230 is still too much. I paid $45.99 for a full set of 4 coils & 4 spark plugs from E-bay.

[@elliottkim6908]

@@vitech1013 No really, since good quality coils and plugs aren't cheap. Hitachi and Denso are the generally recommended coils for most Asian brands and they'll run $50-100/plug. While a good Denso or NGK sparkplug will run about 10-25 each. If you work on your own car it might be fine, but cheap coils and plugs are a hit and miss and you'll likely replace them again soon.

[@melissaditri8162]

I learned more about what is wrong with my 2008 Jeep and how to fix it from your video! Awesome job!!! ❤

[@8020Media]

M - Thanks for the feedback! Glad it was helpful.

[@juanvaldes2458]

Very helpful tip, particularly when I don't have a tester and don't really want to invest in one. Thank you. Awesome video!

[@8020Media]

J - Thanks for the feedback! Glad we could help.

[@blackstonecap]

Thanks for the clear, detailed explanations. On my 09 Silverado I only get a PO 300 code and not a 301 or 302, etc. Sounds like I am going to do process of elimination. Thanks to your video, I have an idea how to proceed

[@8020Media]

L - Thanks for the feedback. We actually have a specific video done for those codes: kzbin.info/www/bejne/nGLQgmieeZZgrKs

[@ashrafothman5227]

Short but very precise explanation. It clarify my confusion between faulty spark plug and coil. Thank you very much for sharing

[@8020Media]

A - Thanks for the feedback! We hope it was helpful.

[@billm83army]

Short?? 8 minutes is too long. Only retards need more

[@dennistirado4619]

Thanks for the information. I have a problem I am hoping you can shed some light on. I had engine misfire and replaced all. the coils and spark plugs. The misfire went away. Also have a new fuel filter. Six months later, I am experiencing a random misfire. Sometimes the car runs perfectly, and all of the sudden it misfires for a few seconds. Sometimes the "Service engine light soon" flashes on and off during the misfire. Then it goes back to running ok. I have poured motor treatment liquids to see if cleaned injectors and the such. Once it misfires, I can detect a P0300 code and troubleshooting this has been difficult. I do not get more specific codes. 2003 GMC Envoy XL 4.2L 6 Cyl. Any thoughts?

[@8020Media]

Dennis - We think a video we made a little while back might be helpful: kzbin.info/www/bejne/nGLQgmieeZZgrKs

[@dennistirado4619]

Thanks, I watched the video. The frustrating thing is that I am only getting P0300. Most of time, the car purrs like a kitten, and when it sporadicly misfires, the "Service Engine Soon" light flashes on and off while the engine is misfiring. When the misfire stops, the light turns off. The check engine light never come or stays on. No other codes. I bought some coils and spark plugs from Amazon in April 2023.for $119 (six coils and six spark plugs). I did some tests (running the car and unplugging the coils one at a time) and all 6 seemed to be working ok. Later today, I did get a code P0302 and I replaced that one spark plug from Autozone - the p0302 code went away but still get misfires. I am leaning to think that the spark plugs that came in the Amazon set are not good quality and am thinking of replacing the remaining 5 spark plugs. The spark plugs read "Iridium ILT5RA 13G" but don't have a brand or code to identify anything else. IN my Amazon order it says Manufacturer LCWRGS? The air filter is clean, I have a new Fuel filter. After I change the spark plugs, I will proceed to a professional mechanic for compression and fuel test. Thanks again. (I am in the Temecula CA area).

[@8020Media]

Dennis. Sorry to hear about your frustrations. What vehicle do you have? Keep us updated!

[@dennistirado4619]

This morning, I tried two tips I saw on KZbin. One- when you clean your throttle, you have to reset the ECM in the throttle by switching the car on to the ON position and depressing the accelerator for 15 to 10 secs. I did that twice. The Second tip - since I had added an injector cleaner... was to put the car in first gear and accelerate to drive up the RPMs. I did that and it felt like if something got unclogged and the engine started revving better. I did a longer test drive and the misfire seems to have gone away. Also, I reran diagnostics and the P0300 is gone. Maybe I dodged a bullet. Thanks.@@8020Media

[@8020Media]

Dennis - Nice! Glad to hear this has been resolved. Also, thanks for sharing your experience! This will certainly help future viewers.

[@hmfem3656]

Great job in explaining. My Chrysler Town & Country is currently at the dealership to replace its spark plugs & I was advised by the technician to replace the ignition coils as well since he was already there. My town & country has 98,586 miles & is ready for the100,000 miles checkup.

[@8020Media]

H - Thanks for the feedback! Always a great idea to replace both components at the same time.

[@elmono3939]

My Code is 0300 - which cylinder is misfiring ? Thank you

[@8020Media]

E - This video may be more helpful with your research: kzbin.info/www/bejne/nGLQgmieeZZgrKs

thnx for these info. My fx35 2009 lately feels like it is not smoothly shifting from 1st to 2nd gears. I feel a slight miss, if i accelerate slowly when moving from a stop, but if I move rapidly this slight hesitation is not felt. Can you say what you think may be the cause. This suv idles steadily, and drives ok, but I know it is just not right, something is causing this new feel in the drive.

[@8020Media]

F - Do you have any engine codes?

[@Kate.Nkechi.O]

Thank you! The mechanic really was trying to tell me to replace my ignition coils when all I wanted was my spark plugs replaced.

[@8020Media]

K - Did it resolve your issue?

[@Kate.Nkechi.O]

@@8020Media I will find out tomorrow. Thanks again!

[@8020Media]

K - Keep us posted!

[@Kate.Nkechi.O]

@@8020Media the spark plugs were a bit worn but not completely bad. No problem with the coils. Thanks so much again!

[@8020Media]

K - Glad we could help!

[@oswaldpino1038]

Great informative video, thank you

[@8020Media]

O - Thanks for the feedback. We hope it was helpful!

[@EmeraldOtringal]

If u swap the coils around then yes, you can see if the problem moves with it or not, however if the problem stays with the same cylinder you still cannot say it's because of the spark plugs. Swap those around as well and see if the problem moves with it, as if it still stays with that same cylinder, you might have a problem with the injector or other parts like cable wiring etc.

[@8020Media]

E - Thanks for sharing this insight.

[@JoeBuckelk]

What if the code only reads p0300 and doesn't say a specific cylinder? I know it may be multiple but how do I know which ones? It's has to be a ignition coil because I changed the plugs

[@8020Media]

J - This video could be useful here: kzbin.info/www/bejne/nGLQgmieeZZgrKs

[@kyleclementz2462]

Thanks for your help! Great explanation

[@8020Media]

Kyle - Thanks for the feedback! We hope it helps.

[@1stBloodyPigs]

Mine is the coils after swapped to a new set of coil. I could feel’s the power when I turned on the car

[@8020Media]

T - Glad to hear your problem has been solved!

[@eddiekane1147]

Really appreciate your video. I'm subscribing and following and donating to you fellas

[@8020Media]

E - We really appreciate the support man! Means a lot.

[@happycat0411]

To diagnose bad plugs just remove the spark plug and look for a plug with light brown colouring. Bad coils will causing stalling, engine hesitation and the poor overall engine performance. I have NGK Irridium plugs in my 2002 Rav4 and the engine still runs like it is new. The Toyota OEM ignition coils lasted for 275,000 km before they finally gave out. DIY replacement cost was about $220 Canadian for 4 new coils, a new EGR valve, a new PCV valve, a new MAF sensor, and a battery. Not bad for a car that I rarely maintain....

[@8020Media]

B - Thanks for sharing your experience.

[@HighHeelsAndPonytails]

Is there a way to tell if your new ignition coils are faulty? Spark plugs were all changed last year and only 1 ignition coil. Check engine light, recently came back on mechanic said it was the same issue. All coils have been replaced as of today however the issue yet persists. Any tips guys?

[@8020Media]

S - You may need to drive it for a little while for the codes to clear. Keep us updated on this.

[@konstantin-big]

Maybe you have another error code When you replace the ignition coil, the engine was running good Did you read the error codes???

[@yourecancelledfromsociety7551]

Luckily I have a 2013 frs, spark plug and coil packs are ultra easy to access

[@8020Media]

Y - Nice, yes they are!

[@yourecancelledfromsociety7551]

@@8020Media thanks for the help man

[@amazinghappsandevents]

Very well explained. Thank you.

[@8020Media]

A - Thanks for the feedback! We hope it was helpful.

[@TheBrownFamilyWorkshop]

very helpful thank you.

[@8020Media]

Brown - Thanks for the feedback! We hope it was helpful.

[@konstantin-big]

Before i change=carry over the ignition coils I unscrew the sparkplug that i have error code f.ex. p0301 and test if that is ok, if that's not ok, i replace that sparkplug

[@8020Media]

K - Pretty much, yes.

[@laineorlow1975]

On my 2002 Ford taurus 0:09 My car is hesitating and chugging and it misfired and checked the spark plugs. Too was not working and got new coil and the two same spark plugs still not working with new coil. Why are they not working?

[@8020Media]

Laine - Have you checked for any engine codes? This can assist in your diagnosing.

[@laineorlow1975]

@8020Media yes it wouldn't work on my car. They Scan it 2 or 3 times, and it wouldn't read it.

[@8020Media]

So you've taken it to a repair shop?

[@JoeBuckelk]

What if the code only reads p0300 and doesn't say a specific cylinder? I know it may be multiple but how do I know which ones?

[@8020Media]

J - This video could be useful here: kzbin.info/www/bejne/nGLQgmieeZZgrKs

[@yebogogo64]

Very clear explanation

[@8020Media]

Yebo - Thanks for the feedback!

[@EmmaRoberts-x6d]

If I switched ignition coils, but there's no check engine light coming on anymore, how long should I wait for the light to pop up again? I've tried driving it for a little but the service light simply went away just by switching the ignition coils from cylinder 2 to cylinder 1.

[@8020Media]

E - Clear the code and drive about 50-100 miles.

[@AnthonyPR-jx1sb]

I would like to say thank you for taking the time and effort to help other people and also would like to know if you can advice me with my Honda Accord 2006 I have a check engine light and I already replace the catalytic converter (after market) also the o2 sensor twice and I don't know what else to do

[@8020Media]

Anthony - Thanks for the feedback. Do you have a code reader?

[@AnthonyPR-jx1sb]

yes P0139

[@8020Media]

Anthony - Since you've already replaced the cat and O2 sensor, have you taken it to a shop? Only things we can think of are exhaust leaks somewhere, lean or rich running conditions, or PCM issues.

[@AnthonyPR-jx1sb]

I did took it to a shop and there is not exhaust leak ether, someone I know told it could be because the after market cat. is not big enough and this cost some kind of miss presure

[@8020Media]

Anthony - Certainly a possibility.

[@user-yc1ug4fx2s]

The injectors did not fix the issue I was having. The active fuel management system is acting up at times causing the car to stutter at low RPMs. Once you accelerate, it goes away. We drive the car daily with no issues, but it does stutter/miss at times with low RPMs. Could this be a lifter problem or spark plugs / coil problem 2016 suburban 5.3

[@8020Media]

U - More than likely your ignition components. Are you getting a check engine light or anything?

[@IsThatHuncho]

I had all these problems, but recently it got worse. I let my younger brother go to get food in my 2012 chrysler 200 2.4L. About 15 minutes into the drive he calls me worrying, saying the car started shaking. Misfires, hard starts, lack of engine power, and bad mpg were my symptoms, but not the pretty heavy shaking when idling or driving, which occurred yesterday. Any reasons that may have started happening? Oddly, the only engine codes i got were only on the catalytic converter, and catalytic converter gasket. So i’m not sure where to go from there and don’t have the money for a repair shop. :/

[@8020Media]

Huncho - Were those the only engine codes you got? Seems odd with everything going on. Sounds like it could be many things.

[@IsThatHuncho]

@@8020Media Yes oddly enough those are the only codes i got when i scanned my system. That’s why I’m so confused and not sure where to go from there.. Should i still try changing my coils and spark plugs still? Or should i just save up money for a shop? I have a eery feeling my transmission is going out but i’m hoping it’s not the case. It does have 140k so it wouldn’t be the least bit surprising if its my trans.

[@8020Media]

Huncho - Would hate for you to replace those components and it not fix the issue. So probably best to go to a trusted shop to get diagnosed, then go from there.

[@IsThatHuncho]

@@8020Media Reasonable, thanks for your time man.

[@8020Media]

Keep us updated!

[@subz6739]

I notice a strange hiccup or cough noise directly from the engine with warm starts and it’s happens every once in a while. I have an engine cylinder 5 misfire with check emission lights and traction control light with LDW and FCW system lights on. They came on last time when we needed new spark plugs and ignition coils so I’m taking it for repair this weekend. Though the cough noise I’ve been hearing concerns me as I’m not familiar with it and I researched for hours with no content creator mentioning this or they talk about noises that sound much different from mine. The last mechanics monitor says my vehicle has 25 error codes.

[@8020Media]

S - Sounds like there could be a lot going on. What did the mechanic suggest addressing first?

[@subz6739]

@@8020Media The Spark plug and ignition coil

[@subz6739]

@@8020Media From there he said he could assess and see how many error codes that will erase. Since after we saw him we replaced the timing belt and water pump with serpentine belt.

[@subz6739]

@@8020Media We were an unfortunate family that fell victim, We were deliberately lied to but the mechanic we thought we knew and trusted. He advised us to stop doing oil service for our vehicle using his logic that the pieces of broken engine debris will kick up in the new oil and make our engine run worse. We took his word for it as we were out of money completely and about to enter homeless. Fast forward 5 months later, We still have an engine misfire with cylinder 5 and transmission issues that we haven’t been able to fix and driven 25,000 miles without a single oil maintenance. Only then our financial life stabilised and I started doing research and talking to people until I took the risk and brought it in for an oil change. So far the engine hasn’t performed any worse which completely falsified the mechanic’s advice and we replaced the timing belt, On schedule to do the spark plugs and ignition coil and another oil change. We’ll see what happens from there on but I have new hope for our minivan!

[@subz6739]

@@8020Media We were an unfortunate family that fell victim, We were deliberately lied to by the mechanic we thought we knew and trusted. He advised us to stop doing oil service for our vehicle using his logic that the pieces of broken engine debris will kick up in the new oil and make our engine run worse. We took his word for it as we were out of money completely and about to enter homeless. Fast forward 5 months later, We still have an engine misfire with cylinder 5 and transmission issues that we haven’t been able to fix and driven 25,000 miles without a single oil maintenance. Only then our financial life stabilised and I started doing research and talking to people until I took the risk and brought it in for an oil change. So far the engine hasn’t performed any worse which completely falsified the mechanic’s advice and we replaced the timing belt, On schedule to do the spark plugs and ignition coil and another oil change. We’ll see what happens from there on but I still have hope for our minivan!

[@highendtrends3508]

I have 60k on my BMW X5 M50i I want to change them for preventative maintenance. Is that okay? Or should I let them rock out till they break?

[@8020Media]

H - Never a bad idea to change them preventatively!

[@yasmin1821]

Just brought a 2006 hyundai sonata runs well no over heating no engine lights but it has abit of a miss when at very low speeds(crawling at a rolling stop) and also just noticed its missing abit sometimes at higer speeds on the highway(stops when i put my foot down and force the revs up). Do u think this could possibly be the cause? Moneys tight so trying to decide if its worth fixing as ive just brought it for cheap as a daily to get close by to and from work. Would sooooo appreciate any advice!

[@8020Media]

Y - what do you mean by it's missing? Misfiring?

[@yasmin1821]

@@8020Media yes, like a stutter

[@8020Media]

Y - We have a great video for misfires that may be helpful here: kzbin.info/www/bejne/nGLQgmieeZZgrKs

[@yasmin1821]

@@8020Media awesome thankyou, that was very helpful.....thankyou so much for taking the time to reply to my comment, I so appreciate that. Awesome channel! Subsribed😚

[@8020Media]

Y - Thanks for the feedback! We're glad we could help.

[@happymood888]

Thank you sir very knowledgeable very easy

[@8020Media]

H - Thanks for the feedback! We hope it was helpful.

[@SB-wz1jj]

Is the ignition coil and spark plug wire are the same ???

[@8020Media]

Spark plug wire connects the spark plug to either the ignition coil or the distributor (depends what type of ignition system you have). So no they are not the same...you should replace the wires when you replace the spark plugs, though. They could be causing some issues, if not then you need to check if you have coils or a distributor and check that.

[@SB-wz1jj]

Thank you so much for the fast response and the good info cheers buddy

[@8020Media]

SB - Keep us updated.

[@AlwaysDiagnoseVehicleFirst]

I have a 2003 Dodge Caravan Se V6 3.3 and it has a coil pack, in this video your swapping individual coil on plugs from cylinder 1 to cylinder 2, how do i apply the same swapping diagnostic test on the coil pack, can you help me with that, please?

[@8020Media]

I - Yes, this is on a BMW. You might want to opt for a multimeter instead.

[@JuanTorres-o6p]

Do I have to disconnect my battery before taking out the ignition coils?

[@8020Media]

J - You don't have to.

[@heidia.440]

Do these faulty parts result in a Toyota Fielder not starting?

[@8020Media]

H - It's possible!

[@HeydaCarreras]

What is that metalic silver cover you have on wires and hoses?

[@8020Media]

H - Heat shield.

[@HeydaCarreras]

@@8020Media Where I should put those?

[@8020Media]

H - You don't necessarily need them. What vehicle do you have?

[@HeydaCarreras]

@@8020Media Kia soul 2012 and Elantra 2008

[@8020Media]

H - You shouldn't need it.

[@GoBart454]

Great video. Thanks

[@8020Media]

G - Thanks for the feedback! Hope it helped.

[@AZa-i1x]

What happens if the ignition coil is loose?

[@8020Media]

A - A lot of things can happen. Are you having drivability issues?

[@Victor-vq9ks]

I have a crank no start on my 99 civic I’ll be replacing the distributor, coil wires, and spark plugs

[@8020Media]

V - This video may also help with your research: kzbin.info/www/bejne/Zoq1la2Al62Wo5Y

[@retiredguyadventures6211]

I replaced all my plugs and wires but is still rough idling. It ran great right up until I changed the plugs and wires. I just had over 100,000 miles on the old set and thought it was time to change. I use iridium plugs and oem cables. I can only guess that the new plugs and wires caused one of the coils to go bad because it was probably almost there anyway. I'm not getting a code so I guess I just gotta buy a coil and switch them out one at a time... I'm retired and broke so I'm not ponying up 3/4 hundred bucks for whole set.

[@8020Media]

R - Sorry to hear this. Are you getting a check engine light or any engine codes?

[@retiredguyadventures6211]

@@8020Media Thanks for the reply! I never got any codes. It ended up being a bad new plug out of the box. I bought 1 replacement plug from Autozone and then rotated each plug down the line until the miss stopped. I got these plugs from Rockauto so there is a chance they are counterfeit. If another one goes bad I will buy the other 7 plugs from Autozone and swap them out.

[@8020Media]

R - Glad to hear! Thanks for sharing.

[@billjensen6216]

Thank you for the video

[@8020Media]

B - Thanks for the feedback! We hope it was helpful.

[@billjensen6216]

@8020Media most definitely, I was going to switch coil packs 1 from the back, causing the misfire to a front of the engine one just to see if the misfire moves with the coil pack. I know it hasn't had plugs change in over 100 k, so all 6 plugs were a no-brainer. But to get the plugs changed, I have to take the intake off intake plenum at a minimum. But I wasn't sure if I was going to do the coil pack also on that cylinder, too. But I will take the coil off 3 and move it to 4 and see if it moves the misfire. At minimum, it saves money and time. I had a stroke 4 weeks ago, and I basically wanted to verify that I had the process correct before doing it. I am a mechanic by trade and truck driver by choice. However, I can no longer drive and am re teaching my mind on stuff I should already know. So, in the long form, yes, this video helped more than most would know.

[@8020Media]

B - So sorry to hear this, glad you are okay. Thanks for sharing this feedback.

[@muhammadasadullah4269]

My car needs more acceleration, its fuel consumption is 7 km/litre. Its suzuki jimny automatic transmission 1.3. Can it be solved

[@8020Media]

M - How old is the car and how many miles?

[@devineleven514]

Lol my obd2 port is dead and i just changed all 4 coil packs and plugs. Damn thing started up running horrible. No power to even move forward. Backfires on high idle after rev to 3k. Im sure its the ignition coil connectors. Good ole 1.8t VW. Just bought a whole new harness to splice into. Wish me luck. Gib me some info on ohm meter test

[@devineleven514]

My turbo isn't connected via vacuum line to N75 Lmao but i hooked it back up. Bad mistake.

[@8020Media]

D - Did this fix it?

[@devineleven514]

​@@8020MediaI'll keep you posted

[@Digitalevo2011]

Great video. Owen Wilson vibes too.

[@8020Media]

D - Thanks for the feedback. We could see that haha.

[@ElaineKobayashi]

Hello :) I have a Honda Civic gx 2008 natural gas vehicle. It runa fine drivinh it for a bit . Then, out of nowhere, it starts slowing down even when i have my foot fully stepped on the gas. It doesn't accelerate.

[@8020Media]

E - Do you have any engine codes or engine lights?

[@LuisGarcia-zc2cc]

Thanks 4ur help

[@8020Media]

L - Thanks for the feedback! We hope it was helpful.

[@anuramahawattage4244]

Good job

[@8020Media]

A - Thanks for the feedback. We hope it was helpful.

[@heathhaney4351]

Will bad plugs or coil pack cause a car to die and not start until it sits like 20 to 30 minutes

[@8020Media]

H - Sounds more like a battery or alternator issue.

[@zoealoisi9334]

Po300? As opposed to 301-?

[@8020Media]

Z - This video may be more helpful: kzbin.info/www/bejne/nGLQgmieeZZgrKs

[@tyronethomas820]

How u know if spark plug is bad I didn't understand

[@8020Media]

T - If you look at it, you could tell. Or if you have a P0300-P030X code. What vehicle do you have?

[@tyronethomas820]

@@8020Media 2003 grand marquis

[@myrasandoval8523]

Where is your speaker. Up can't get sound)

[@8020Media]

M - This was an early video so we didn't have all the proper equipment. However, since this video, we have dramatically upped our audio quality.

[@InSlobnia]

It takes so long for the CEL to come back on

[@8020Media]

I - What engine codes are you getting?

[@InSlobnia]

@ Cylinder 1,2,3 and 5 misfire. I just recently changed my sparks. Waiting on coils to come in so I can change both. I’ve been told it can be the cats so I’ve ordered new cats as well

[@8020Media]

I - Keep us updated! Hope it gets resolved.

[@GabbyA-vf1uv]

Even though it's not a Saturn. I found out something to look for I found that piece in a tool bucket. Have a mechanic who does a horrible job. Frustrated with him. His my husband and completely took my my coil and spark plugs and fuses. Now my car won't start.

[@8020Media]

G - So sorry to hear.. Keep us updated on this.

[@ronniemcelroy9155]

Perfect but I'm not fire to my Coil . New plugs new coil still no fire

[@8020Media]

Then you probably have a fueling issue

[@donnienicholson4162]

What if all plugs are connected to one coil?? 🤔

[@8020Media]

D - Sounds like you have a coil pack. What are you trying to do?

[@simobonev4511]

Very useful

[@8020Media]

S - Thanks for the feedback. We hope it was helpful!

[@titop6152]

Thanks 🙏 😊

[@8020Media]

T - Thanks for the feedback!

[@richardsimms251]

Great

[@8020Media]

Richard - Thanks for the feedback! We hope it helps.

[@robertwright4220]

I have a Bugatti so I may get codes all the way to 16

[@8020Media]

R - Nice

[@munchiemac2895]

If you driving a gatti you should be able to afford a proper mechanic

[@robertwright4220]

Whether I have one or not, running a diagnostic has ZERO to do with affording a mechanic. Also, people with money most likely will have more than one vehicle. My neighbor had a Ferrari 360 he worked on all of the time….

[@ochicoloto3524]

Isn't there a tool to test the coils individually? This method sounds outdated. I have had mechanic identify my coils without swapping coils. Who has that luxury of time?😅. Thanks anyway

[@8020Media]

O - The method we talk about doesn't take very long. haha

[@Stopkillinginnocentcivilians]

Multi meter

[@hoppyjohnson8571]

If you run to a mechanic shop then you should go back to watching videos of zero value. This is for people who are not interested in wasting money on something we can do ourselves.

[@sarahadrian1376]

What if you drive an old Jeep and your check engine light is always on because of some random useless sensors...? I never saw an engine like yours lol

[@8020Media]

S - What engine code are you getting?

[@electric8668]

A bad ECM/ECU is another possibilty as the cause of misfire.

[@8020Media]

E - Indeed, although, not super common.

[@electric8668]

@@8020Media Agreed

[@davidchung4651]

👍🏿

[@8020Media]

David - Hope it helped!

[@DougieD61]

5 minutes in, and no test yet.

[@8020Media]

D - 4:13? We make these videos for everyone, regardless of automotive skill level. If you want to skip ahead to the info you're looking for, we have chapters in the description.

[@matkasim]

What if the yellow light lighted only after driving few miles? Not immediately when starting the car

[@8020Media]

J - Assuming you're talking about the check engine light. Do you happen to know what engine codes you're getting?

[@Ms.SusanM.Marshall]

Its my Ignition coil, is it okay to purchase a used ignition coil for a 2016 Hyundai Accent?

[@8020Media]

M - I wouldn't advise buying used ignition parts.