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P0304 Cylinder Misfire | Troubleshoot Engine Misfire Problem 

dial2fast
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In this video I will show you how to troubleshoot and diagnose a cylinder misfire problem in your vehicle. This problem is caused by either an issue with the ignition coil or spark plug. You will get an error code P0301, P0302, P0303, P0304. The steps to troubleshooting this is quite simple and you can do it yourself. I will show you the troubleshooting steps in this video.
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27 июл 2024

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Комментарии : 45   
@amandam7042
@amandam7042 4 месяца назад
Awesome video! I ended up needing a new spark plug and the error is gone! whoohoo! Thanks for the help :)
@i-ammoney8397
@i-ammoney8397 6 месяцев назад
I have this code P0304 I replace the coil oack and the spark plug. Still miss firing. Maybe I got a faulty coil oack or spark plug. This is driving me nuts!!
@pebbleslove9731
@pebbleslove9731 10 месяцев назад
Is there a more serious problem if this happens more than once afrer replacing 4 cylinder coil within 6 months time???
@TheAbJGarage
@TheAbJGarage 11 месяцев назад
wonderful!
@404notfound.....
@404notfound..... Год назад
Excellent video, just a pro tip though you don't have to do an auto scan, you can do a manual scan and just bring it over to diagnostics for engine. I have the same autel but it's the mp 808. Also don't forget a little bit of dialectic grease to go on the end of the boot before you reinstall back to the spark plug.
@dial2fast
@dial2fast Год назад
Thanks for the tips! Especially the dielectric grease.
@jcravatt1
@jcravatt1 Год назад
mine was an newer ignition coil- luckily had a few original coils lying around
@Dylan-kw4ol
@Dylan-kw4ol Год назад
Hope you had a Merry Christmas and a Happy New Year
@dial2fast
@dial2fast Год назад
Happy new year
@alfredogallegos8032
@alfredogallegos8032 6 месяцев назад
thank you
@frankdillon6127
@frankdillon6127 Год назад
there many complaints where people purchase fake NGK iridium plugs off the internet. where did you get the plugs?
@nazgeebowe2268
@nazgeebowe2268 8 месяцев назад
Torque setting to install spark plug on the Elantra GT…???
@clench2642
@clench2642 2 месяца назад
Sir what specific tool do you use to take out spark plug?
@Jean-PaulLavoie
@Jean-PaulLavoie Месяц назад
Bravo
@MrWoodstar1
@MrWoodstar1 Месяц назад
How about the Wire Harness?
@buddyboy4x44
@buddyboy4x44 Год назад
When you first checked after switching the coils, surely the fault code from before would have showed until you erased it then scanned again, as you did with the spark plug later?
@robbieaussievic
@robbieaussievic Год назад
..... Good thinking Mate, correct, it should have been cleared first. If it was the coil and not cleared two error codes (3 & 4) would have been displayed. Before commencing I would have wiggled connectors around while running to see if anything audibly altered. I think the new plugs were iridium ? I think the gaps are different from standard plugs ? That wouldn't have manifested in a instant fail though. So I concur, internal plug failure.
@buddyboy4x44
@buddyboy4x44 Год назад
@@robbieaussievic That clarifies it. The test, then, is if two codes appear it is the coil. In that it was only (the original) one it rules out the number 4 coil.
@dial2fast
@dial2fast Год назад
Thanks for all the good points on this issue. Really appreciate it!
@user-nx8bk7ds3v
@user-nx8bk7ds3v Год назад
Good job thanks you 👍
@wildwolf8983
@wildwolf8983 Год назад
What’s the scan tool that are you using?
@dial2fast
@dial2fast Год назад
Autel MaxiCOM MK808BT amzn.to/3toyrVj
@ivansebugere7186
@ivansebugere7186 Год назад
My question..is...do i need to replace all the 4 spark plugs...or i just need to replace the one misfiring...
@dial2fast
@dial2fast Год назад
If the spark plugs are due for replacing, then go ahead and replace them all. Otherwise just replace the one bad one.
@Bella-nv2yp
@Bella-nv2yp Год назад
Is it under warranty?
@dial2fast
@dial2fast Год назад
Not under warranty.
@aymenmohamed1134
@aymenmohamed1134 Год назад
👍👍👍
@JR-yg1jv
@JR-yg1jv Год назад
I have a question sir i’m having the same issue with that code p0304 I replace all spark plugs and I replaced all ignition coils and the light is still on with that same code what else can it be? Thank u
@shbt8875
@shbt8875 Год назад
Did you figure out what was wrong because I did the same fixes you did and the light was cleaned but came back on the next day
@JR-yg1jv
@JR-yg1jv Год назад
@@shbt8875 yea I check the fuel injectors and moved them around and it went away
@JR-yg1jv
@JR-yg1jv Год назад
@@shbt8875 maybe try that bro
@shbt8875
@shbt8875 Год назад
@@JR-yg1jv alright I appreciate that reply will do that next
@mummaistvan7320
@mummaistvan7320 11 месяцев назад
I replaced spark plugs, ignition coils, fuel injectors, after moving around. Still P0304? EGR Valve, MAF sensor, no vacuum leaks, any info what I should check next? O2 sensors all good, Cat good, fuel pump good? I've spent $1000 having diagnosed. Don't have a clue what direction to try next. Thanks
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