HOW TO FIX CODE P0300 RANDOM MULTIPLE CYLINDER MISFIRE
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- Опубліковано 20 гру 2019
- HOW TO FIX CODE P0300 RANDOM MULTIPLE CYLINDER MISFIRE
If your car has engine light on and code P0300 Random Cylinder Misfire Detected, we will explain what could cause that and how to fix it. We will share with you the top 3 reasons that can cause Code P0300 and your engine light to be on. If you have code P0300 always check ignition coils, make sure that you do not have oil or water in the ignition coils, this could be caused if you have washed your engine and water got trapped in the ignition coils, or if your valve cover leaks oil it can make the ignition coils when they may start misfiring and trigger code P0300. Also, check spark plugs and spark plugs gap. If you put new ignition coils, spark plugs, and the spark plugs have the correct gap, it could be dirty fuel injector, also vacuum leak, bad pcv valve and more. We demonstrated how we fixed code P0300 on Mazda but it will work on multiple cars.
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Great info but can you go 2 mins without saying GUYS???
@Dwayne Waylon you high??? Get off that rock bro.
Lmll
You must have a drink everytime he says “guys”
I’m back after spending 2 months in hospital for alcohol poisoning 😷
Trashed
Its Minute 1:45 and so far I've had 15 drinks 🥴🥴🥴🥴
I don't think I'll be able to finish watching the entire video🤢😵
We're all going to die!!.. 😆😂
I just drank water. My kidneys are flooded.
Everyone wishes the problem can be fixed by adding something to the gas tank (me too!) but when you pulled those plugs and saw they were not only broken but so poorly gapped it made me wonder who was working on that car before you got it. Nice work. Update: My mechanic pulled the plugs, the wires and the ignition coil (only one in my model Subaru). The car is now working perfectly. I should have had this done as regular maintenance years ago before I started throwing money down the gas tank with lousy mileage.
😂😂😂 that person didn't know what they where doing
by adding fuel stabilizers Make sure all spark plugs are out before adding do not mix do not start car let sit and apply pressure to the gas pedal 10 times or more if needed your fuel pump will push out dabries caused by over bernt gasoline
Using only sta bill to insure quality
Hope this helps
Thumbs up, nicely explained and good video!
Nice video. Thank you.
Very helpful. Had issue with condensation buildup and water in fuel. Common here in Canada during winter. Checked plugs and gaps just for good measure. Problem gone.
Thank you guys for the information guys. It was a good video guys. I was having the same problem guys. So guys I will follow your instructions guys. So guys, good job guys.
Thanks guy. Guys, Its good we've got guys that teach guys who can teach other guys who aren't car guys how to be car guys rather than pay mechanic guys tons of money .... Guys
@@dereklaverne7608 🤣🤣
Why isn't your comment liked more? 😂😂
@@matthewfernandez8104 🤷🤣🤣🤣
@Steve Gabriel and @ Derek Laverne Guys! 🤣🤣🤣You stop guys🤣🤣🤣Guys I need to fix my car guys🤣🤣🤣Guys I replaced my 6 new NGK spark plugs guys, and guys I also replaced 6x new Delphi ignition coils guys, and guys I still have a PO300 and P0301, P0302, P0304 and P0306 if I remember that correct guys. I really want to cry guys, but guys you made me laugh today guys🤣🤣🤣
Helpful info.
Thank you
Thank you for your time
Great information and illustration
I really hope this fixes a lot of issues surrounding P0300. Spark Plugs normally don't mess up. I too have a P0300 as of recent.
If you pay close attention you only drove the car for a little over a mile. Typically when you reset a code it may not reappear till the following day or a few days latter.
Oh yeah. Had an issue didnt reoccur til after a day. Then started reappearing sooner
Good job
Thank you sirs.
Good video. Thank you
From my experience these random misfires are usually accompanied by other problems. I would always start there first. The cylinders have their own codes similar to 0300 but they are 301,302,303 etc. showing you which cylinder it’s is. I admit not always this easy.
Yeah exactly. You'd think if a sparkplug gave way it would have recorded a individual cylinder code before the other plug blew.
Unless the sparkplugs failed at the very same time, which we all can assume didn't happen. I think there's definitely deeper issues here.
So I just had code p0300 and p0302 any suggestions
@@kidnplay2148 unplug each coil pack while it’s running make sure each one unplugged makes a difference in idle sound
@@heirloom462unplug it from the connector or completely out of the hole it goes in?
I just scanned mine this evening 2mo I'll fixed thanks a lot from iraq.
Thankk youuuuuu!!! God bless
Well done good information i bingo many thanks
I have a 96 camaro rs 3.8 L hopefully one of these solutions fixes it cause it happened today under load it doesnt wanna go it just chokes up thanks for the video!
Have a 99 3.8 camaro same problem, hit about 1k rpm when I get misfire. Replaced coils wires, plugs ect. Thinking it's a manifold leak
@@Dylan1993100 it ended up being a coil pack
i had a misfires on cylinder 3 and 4... i changed the 2 ignition coils and 2 spark plugs seems to work good now, i did not changed anything on the other 2 on cylinder 1 and 2 because they didn't have misfires....i'll update if the engine light comes back on guys..so far so good. fingers cross...
Update please
@@kennethziegler7025 got an update misfires came back couple days later, it wasn’t the coils or spark plugs, it was causing misfires because I had a exhaust burnt valve in cylinder 4, so I was having flashing check engine light..the shop did a compressor test/Leak down pressure test confirming it is burnt valve in 4.. well I had it replaced lol cost a lot though 4K I had all my valves replaced, engine gasket replaced, and timing chain replaced too.. and new oil change too.. only reason I did it because I still love car lols. Most peoples would probably passed on with it because it cost too much it’s better if u just go buy a used good car instead Lols. But yea that’s the update but now I think after doing all that I now need to replace my thermostat too because I would see it going up one notch then goes back to normal in the middle Lols! Having a car there is always gonna be issues ! It sucks but yah this is my update ! So next fix will be taking it to the shop to get the thermostat replaced with a new one.
Update please
Update?
BENT COIL CONNECTOR PIN: I had an annoying and hard to trouble shoot P0300 code on my 6 cylinder 2003 GMC Envoy XL. I had replaced the spark plugs and coils and the code and misfire would not go away. Why it did not trigger a P030x error, I don't know. Just passing this along as something simple for others to check. Have a nice day!
Thank you for this video I'm going to share this video with my mechanic.
Hope this works for my GMC Yukon because I don’t want to remove the door panel.
For the additive does it matter if it uses premium or regular gas? Because as far as I know premium already has some additives
mazda regular
Guys is better than you know what I’m saying
Thanks
An exhaust leak ahead of your downstream 02 sensor or also the downstream 02 sensor which is the one after your convertor can also cause random misfire.
Слышу русскоязычный акцент. Но английский хороший! Thanks!
I wish you had shown how you set the gap on each new spark plug
Cheers
Hi guys ok I change the coil packs plugs look good crank sensor cam sensors map sensor still po 300 plus idle driving it starts stumbling once it kinda warm..
I currently have a 301 303 code i changed new plugs and coils and still reading 301 303 with p0300 and my car wont turn on at all
My car is brand new, 1850 miles. What could cause this? Spark plugs shouldn't be the problem in this case unless they're defective
I'm pretty sure those spark plugs you put back were older than the first! SMH
My 2011 Nissan 370z Nismo still show P0300 even though I’ve already spent $2,000. I replaced all parts with OEM like Spark plugs, Ignition coils, PCV valves, crankshaft sensors, air filters, oil changed, and evaporation purge valve. What’s else should I replace to make engine light go away?? PLEASE HELP 🙏
It’s a 4 cylinder. It said it needs to be 1.25-1.35 right?
Is that Borat
In had cylinder 4 misfire for a while. Changed a few things. Never sorted it bit now it has changed to cylinder one misfire??? Any ideas?
Well what did you change?
He missed 7,568,090 chances to say guys.
Dang guys. The guy is just trying to help us guys. Leave the poor guy alone. Meow
@@pitchforkpeasant6219😺lol
Aluminum head requires anti seize on plug threads. Unless you wanna replace head next plug change,guys.
How to fix P0172 on mazda cx7. sir.
What about a cracked head or head gasket or worn timing chain?. I'm getting random misfire on all 4 cylinders.
Do u have any gas in your oil?
Can this problem on a car be a root cause of increased fuel consumption?
100%
Never use your torque wrench as a ratchet.
Seriously
How long does it take for HEET to work on a car?
2 minutes.
Seem not to pick up the speed quick
I have a Nissan 2015 altima. My check engine light is still on after my mechanic put new spark plugs into my car. What else could be the problem?
Ignition coil or fuel injector or head gasket
I need your help I have a 2006 ML350 I have a misfire on all cylinders and it's running lean on right and left Bank I changed plugs checked coils and rebuilt the injectors it works fine when I'm driving but when I come to an idle or started it idles rough I'm thinking vacuum leak because I can hear a whistle sound
Purge valve
@@bryanutterback4074What if I had a purge valve code that went away after I changed coils and plugs but the symptoms remain ie rough idle?
I have this on my 370z and it only happens when it’s cold, the car has no issues.
Same here. Did you find out why?
i never had this code before but i changed the plugs on my 2013 ram 1500 5.7l i did 1 cylinder at a time i used bosch iredium plugs and every now and then i get this code?
Same here I put some ngk iridium plugs in mine when I rebuilt my ls2. I wonder if it’s the plugs themself or an ignition coil problem
Mine ran good before I changed plugs and this was the 2nd time I changed plugs in my truck 1st time I used regular EL-cheapo plugs i have just cleared the code about 5 times now and so far so good
P0300 but I have also code P0202 cylinder 2 injector A circuit
Ok guys!
Ac delco everything
I have a 2013 mustang boss 302. I installed an LED steering wheel and wired it to the clock spring of the steering wheel. I then wired it to the internal Fuse box of my car using a piggy back fuse adapter. The steering wheel is working fine. A couple of weeks later the check engine light came on and the OBD2 tells me that it is P0300 random miss firing. Could the steering wheel installation be causing the code?
Did you ever find out
Don’t forget about a leaky valve cover gasket. Will fill up the plug hole with oil.
the P0300 error just started for me yesterday and i know for a fact that my valve cover gasket is leaking. can you elaborate on what you mean by the plug hole with oil? ty!
I was short on what I wrote should say don’t forget the valve cover gasket because it will fill the plug holes with oil. Sorry for the poor wording. Good luck with your project
@@rbmwiv hey what if I replaced my head gasket and after i got this code?
@@rolandomedina9996 what issue were you having that needed a new head gasket? First thing I would do is pull all the plugs and check the compression in each cylinder. It is also possible that the vanos is off, it may have not been properly timed. Or could be a vacuum leak where something got overlooked on the head job. I would also perform a smoke test. That will show you any leaks in the intake. Probably do a smoke test first because air leaks in the intake cause random misfires.
@@rbmwiv I had coolant loss and coolant in my oil. I just now replaced the low pressure sensor and now i have a random misfire code and a p0001 code.
My 2009 dodge,3.5 engine still missing ather changing plugs coils injectors any advice
Look for oil or coolant leaks, and the sensors like the O2
LOL. Yea.. right.
Ive learned alot about certsin gas. And i am no longer using ethanol in any of my vehicle. It is dogshit.. and will screw up older vehicles.
How can I get rid of a code p0300 for a A class Mercedes-Benz
but then it could be....
Okay guys let's see if you actually comment on subscribers comments.! I'm really baffled here. I have a 2018 Kia Soul. With right at 50 thousand miles and never seen a P303 with that many miles.i replaced all Plugs and coil packs and took it for a drive and wow what a load of crap next. It started sputtering, Skipping and drove like a Kia..I hooked up my Topdon and it was throwing multiple codes from P300 which I know already,P301, P302, P303,P300 again to P304..Dam excuse my language!! So I pulled the Coils out and replaced them crunk it up and purred like a kitten. As it did before all this I've been through. I drove it around the neighborhood and up and around the area.Ran like a charm..I parked it and told the Wife it's good and you can drive it to work tomorrow. Well low and behold she returned home to get the Truck because it was skipping and running like a Kia again. like a piece of crap..I did put Lucas gas treatment in. I'm pretty baffled as of now. Haven't hooked up my Topdon as yet to see if any other codes are available I'm kinda thinking fuel filter. But that's built into the Fuel pump...Have you guys seen anything as this? I'm a guy who does these things myself. Just hoping you have and are able to point me in the direction I need to go...I would truly appreciate it if you have seen this before..As the Fuel pump I just don't see it going out especially with only 50 thousand miles.. Thanks for any update on this Piece of crap Kia you may have seen...
Id still hook up a fuel pressure gauge untilni had it figured out , ive glanced over at when there running and watched them do wierd things occasionally , when accelerating it shouldnt drop 2 or 3 lbs ,55 lbs first check , now its at 50 , half hour later , koeo . That's what my 3/4 ton chevy 6.0 is doing right now , im wondering if i should try a fuel pump , or coils , plugs , gapped & new plug wires are just done , it did nothing ..PO300 code ..going to check the live data feed on the o2 sensirs after my sandwich ..still gotta hook up exhuast , convertor back , broken exhuast manifold bolt on the ds exhuast manifold to head , as
usual , leaks bad , that might cause the code , but im still thinking fuel pump
My GFs Honda D16V1 is giving random cylinder misfire and we cannot get it sorted. Has new plugs, no water in fuel, etc, we have checked alot of thing and it will not work, it gives codes for individual cylinders misfire first, usually starting from cyl 3, then a bit later it says multiple cylinder missfire. Any ideas?
Could be leaky injectors, bad spark plug wires, or a bad distributor. First try testing resistance on the spark plug wire for spark plug 3 by using a wire tester. Wire testers look like little clamp on spark plugs that you clamp on to a ground and light up if it is getting spark. You should be looking for a nice rhythmic spark from the tester if the wire or distributor is good. if you are not then test the resistance of the spark plug wire with a multi-meter and reference your owners manual for the optimal resistance of the wires. If your wire is good and you are not getting a rhythmic spark it is your distributor. If the wires and distributor are both good then next check the resistance of fuel injector #3 with a multi-meter and once again reference your owners manual for manufacturers specifications. I hope this helps! EDIT: oh also it could be a bad fuel pump and just look up chrisfix for that haha, once again good luck!
@@Ghost_TTi6 Thanks! Its a coil on plug ignition, and swapping coils around didnt help. Also the fuel pressure was checked by dealer along with spark, timing etc. Im not sure if they tested injectors, but since its giving multiple cyl misfire I would find it weird that they all would have gone bad in the same time.
Did you ever get the problem fix
@@Mortalomena hmmm, maybe a vacuum leak?
Did u ever figure out the problem?
So the video you stated that you would show all issues that can cause a p0300. But you stopped at the spark plugs there's bound to be more behind the scene than just the spark plugs. You got to the fix on the car and stopped you should keep going and explaining what else causes a p0300
my MPV has this code after a mechanic worked on the injector,plugs and coils, it does hard starting
Did you figure out the problem?
@@ZKrow382 i was told the MPV has lost some compression
@@segzy05 what did you do to fix it?
did he out used plugs back in? 😂
Theres oil on spark plugs threads cylinder 2 And cylinder 4 what does that mean and how can I fix
I think that’d a bad head gasket
Spark plugs tubes in valve cover seals need to be changed: they become dry and stop sealing oil from going into the spark plugs
What happens if you did that and you still get code?
Fuel pump
HUH....WHAT?
Baddd voice😮
4.40 слово: Всё?
Remember guys....ONLY!!! If the guy in front of me decides to take off today!!
Those weren’t new spark plugs
Bro your voice has Misfire 😂 jk
I love crepes
Man at this point just speak your natural be language
This video is a joke.
Your gorgeous are u single?
I’m single what’s your number?!
I'm not single but I cheat so what's your number 😂😂😂😂
Couldn't understand what the guy was saying , the broken english made me stop watching about two minutes into the video ...