2012 Prius - CEL P0301 Cylinder 1 misfire/Engine knocking - FIXED
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- เผยแพร่เมื่อ 26 ก.ย. 2024
- What I did to fix my issue when I got a check engine light with a P0301 code indicating a misfire in cylinder 1 with severe engine knocking.
For the last 4-5 months my car has been blowing mostly warm air, even on cold days and my car temp set to 65 degrees. To get any cold air at all I would have to turn on the AC. After this maintenance the cold air has returned and everything is back to normal.
I used the following videos from NutzAboutBoltz as a guide:
Sparkplug replacement:
• 2010-2015 Toyota Prius...
EGR maintenance:
• 2010-2015 Toyota Prius...
Intake manifold maintenance:
• 2010-2015 Toyota Prius...
Some good clamps you can order: www.amazon.com...
The brush kit I used to clean the EGR cooler:
smile.amazon.c...
That Knocking sound with the Misfire P301, P302...Etc.... is do to a Head gasket, I saw many of this easy fixes on the Prius. I have a 2010 Prius with many miles and saw all this videos and ideas on how to fix the knocking and they are only temporary fixes from taking out the O ring on the reservoir to cleaning the EGR, Cleaning the manifold, and putting on new Spark plugs and Ignition coils. The best thing to do is to change the head gasket before you mess up your valves and engine. The best way you can tell is if your coolant is going down fast and check your oil. If the oil is cloudy you know something is wrong. I fixed my Head gasket and the problem is solved, it is a very large job but very doable. It took me 3 days and about $500.00 in parts.I hope this help many people that love their Prius like I do. Prius Chat helps a lot.
What are the parts you used for HG replacement? Kit from dealer or aftermarket?
@@Noezen03 They sell a set at the dealer I think it cost me $250.00 for the Kit not sure but it was approximately there because to get the heads done it was $200.00 and they did it the same day. My Prius is still running without any problems
Thanks, I know I went to the dealer and got the kit. I’m kinda hesitant to do it myself. But I’m asking a mechanic friend and he said he’s gonna do it. Did u somehow included a Oil catch can After ur rebuild? There’s a guide @prius chat by Danlatu. They said it’s to keep the oil build up and to eliminate na future damage of HG again.
@@Noezen03 From what I remember I put some oil on the rebuilt Heads after I torqued them if you go to the Prius chat they give you the specs and you could get the torque wrench at Oreilly's they loan it to you so you won't buy it(only used it once) for free of course you leave it a deposit but it is reimbursed. I think the hardest part was lining up the time but it has the arrows to guide you and they don't give you the gasket for the side so you have to use that silicone sealant on the side. You will see it and know what I'm talking about. Good luck and I'm glad saves you a lot of money. just be patient.
Yes thank u very much I was looking into it and you pretty much explained everything spot on makes sense
Hope the problem didn’t come back. Mine did the same thing. It was a blown head gasket. Took 2 weekends and 30 budweisers to change it.
Sounds like mine when the head gasket blew
@@metrork1
Fingers crossed, mine’s not had the problem since I changed the head gasket
How do you know when it’s a blow. Head gasket?
@@Jas_01101 random engine shaking at cold start ups. They became less random though. It shakes because water seeps into a cylinder. Worse in winter when the metal is contracted
@@cnoodle7650 damn cylinder 3 has coolant inside. Spark plugs were wet with coolant. Supposedly blown head gasket. How common is this? How hard is it to fix?
If you have the same issue, watch your coolant level. If the coolant level drops even after tipping off and you have no confirmed leaks to the outside, it is almost certain that the head gasket is going to fail in a few thousand miles and is leaking coolant into the cylinder(s) causing the misfire codes.
I wasted time and money replacing plugs, coils, And cleaning EGR. Still ended up blowing and overheating my engine.
The problem manifests itself more during cold weather too.
th-cam.com/video/U50T-hNdCnw/w-d-xo.html
Needed this so much. Thank you. I’m already $1300 in with the spark plugs, fuel injectors and ignition coils and of course the labor for each of these. But to find out that it’s still not the problem and i should have looked at this video first, I could kick myself.
You could have had the injectors rebuilt for the price of one
@@JD-ml7cg how do you do that btw
@@josegomez6549 Google it
Sounds like you got super ripped off dude. Not.a big deal to change out any of those components
This cars head gasket was blown. Keep reading the comments. This solution didn't fix sh*t. It just delayed the inevitable.
I had the same P0301, engine knocking if I do not drive it overnight . Morning start ups always get a knocking for about 5 to 10 seconds. Ultimately the proper fix was the head gasket issue. Took head to the machine shop , it had some low spots. I also addressed all the things you mentioned in your video.
th-cam.com/video/U50T-hNdCnw/w-d-xo.html
How much
I did the work myself. Head was $100 to get it decked and checked out. @@georgecruz4345
My wife was having this severe shaking and misfire cylinder 1 in her CT200H(same drivetrain), internet said it was the EGR. It ended up being the headgasket which bent rod #1. The local mechanic wanted $5000 to replace the gasket and Lexus wanted to replace the engine at the cost of $6500. I ended up doing it myself for about $230.
William Decoteau are you a mechanic?
@@realrandomcarstuff no
William Decoteau wow. How long did that take? Had you done a head gasket before?
@@realrandomcarstuff the car was out of commission for about a week because I took the engine apart then ordered parts, but it was maybe three days of actually working here and there. This was my first time pulling an engine and tearing it apart. It was pretty straight forward though. It's a common issue on these cars and there's a few well documented fixes to follow along.
@@WillThat This is awesome! I did my spark plugs, fuel injectors, Now my ERG is in pieces in the garage. If that doesnt work. I think I will do the head gasket myself. And I am kind of excited. My wife thinks I am crazy. I think $4,000 of work on a $12k car is crazy.
In the description, you claim to have fixed the severe engine knocking; however, I noticed that 2 months later you posted a video where the severe engine knocking is still present. Perhaps you should edit this to let people know that this did not actually "fix" the severe engine knocking.
That knocking can be caused by various misfires. So it could later have been headgasket failure or something else.
I did an article on this on Prius chat. In my case the EGR pathways in the inlet manifold where blocked by soot. Only the 1st was still open. This caused the 1st cilinder to get all of the EGR gases and it started to misfire because of it... Solution: clean the EGR pathways in the inlet manifold.
My EGR pathways were clogged also. Replaced the EGR valve first with exhaust gas cooler cleaned but didn't help the shuttering while driving, misfire. Replaced the intake manifold with new one and it runs great now!!
@@claudebradley5381 how much that cost? I'm hoping that isn't my issue.
@Brigman74066 do you have the link of your Prius Chat article ?
If you ever have a misfire on one cylinder, simply switch the coil packs and see if the error moves with the coil.
These are the least of his problems. I did two prius already, my brothers and mine and both times it was the headgasket needing replaced as well as cleaning the egr, egr cooler and intake manifolds tiny port holes.
If you take a pressure washer (just go to your local car wash if you dont have one) you can clean out the EGR cooler in about 10 minutes. Easiest fastest way to go.
How
Great video! Highly recommend installing an oil catch can. This will reduce the amount of oil being recirculated back into the intake manifold and clogging EGR valve and cooler. Every time I change the oil in my Prius (every 5k miles), there is at least 3-4 tablespoons of oil/fuel caught in the oil catch can. Might want to also change your spark plugs when doing this. Some of my plugs were fouled due to the excess oil being sucked back into the intake manifold and into the intake runners. Oil catch can will reduce that from happening too.
Do you have a recommendation for one? One that's easy to install and empty out?
Seahawk Guy I used the one recommended from this Nutz About Bolts video. th-cam.com/video/QJ4X-IRBNVY/w-d-xo.html. Pretty cheap and available on Amazon. I also added a metal scouring pad inside the catch can to serve as an extra filtration medium to catch more of the oil and fuel from the PCV valve.
This cars head gasket was blown. Keep reading the comments. This solution didn't fix sh*t. It just delayed the inevitable.
I just did all the intake manifold and EGR system clean at 100,000 miles on my car as a preventative maintenance job. That clip that is hard to remove took me about 1 hour. I watched a gasget masters video and they ripped it upwards, took under one second to remove. Made me feel like a fool! The underside nut on the EGR cooler didnt go back in on my car as that was a huge pain to remove. I also installed an oil catch can. Fingers crossed I dont have any engine knocking in the near future.
Need some help I cleaned out the EGR valve and also the manifold but once installed engine started shaking what can I do
Oh my gosh this is EXACTLY what my Prius has been doing. Thank you so much for this video man
me too bro, lmk if you get yours fix and how it runs after. I'm about to do mine this week. Hopefully it will be good after. GL
The same thing on mine 2012 Prius at 133k miles. About to replace the spark plugs first. Thanks for the helpful video.
Updated: finally it was a bad fuel injector. I found it by swapping them.
Iurii Rudov 2011 with 125k on mine. I guess Toyota recommends the spark plugs be changed after 120k? So that’s what I’m going to try next.
Jason Win what did you have done to yours? I tried taking mine to the dealer with a clear recording of the sound. Mine did this three times on cold start but since there was never any error codes or warning lights on the car there was nothing on the computer for them to check. My suspicion after watching a few other videos is that I need spark plugs. But how is yours running now? Did yours make that noise a lot or just now and then?-mine was about once a month since January.
Head gasket sealer, cleaning the EGR valve, and the EGR ports cured my engine shakes. Runs like new.
That EGR system is a bear to do but it will save you hundreds to do it yourself. Another thing is to check your coolant level closely and often as well as the oil level. Over full will suck oil back into the manifold and EGR causing the same problem. The bonus is you will be a Prius genius after you're done.
Great video. Clear, concise and helped me save money. Thank you!
This cars head gasket was blown. Keep reading the comments. This solution didn't fix sh*t. It just delayed the inevitable.
I remember every once in a great while on cold startup in the morning I would hv shaking goin on. And then I wondered what if I wait for engine to shutoff (and not while its running) at end of day before pushing button to off. Ever since then I hvnt had any rattle.
GOOD JOB DUDE!!!
Mine is hard shaking though prefers reverse and stood being crazy after about a minute.
SUPER helpful.
Very much appreciate you.
This cars head gasket was blown. Keep reading the comments. This solution didn't fix sh*t. It just delayed the inevitable.
th-cam.com/video/U50T-hNdCnw/w-d-xo.html
@@Tuck_Frump gotcha.
Much appreciated...
I came to find it was my soak plugs.
Switched them out a few weeks ago.
So far so good😁
There is moisture or blow by oil getting into that cylinder , you need to check thatcylinder or have a compression check on all that cylinders. So that is the first thing to check. One of the things that have helped is cleaning out the egr pipe then adding a filtered oil catch can between the PCv valve and the intake manifold. You should clean out your intake manifold it probably has a lot of oil in it. I have high miles and changed out the head gasket and added a filtered oil catch can , I use 3 quarts of 0w20 and between oil changes I use lucus oil stabilizer , that helps with worn piston rings and oil consumption. The car no longer shakes during cold startup , no coolant loss. You can get a cheap iPhone boroscope to look into a suspected cylinder before you start up in the morning and look to see if it’s oil on the piston or coolant. Sometimes people would unpressurized the coolant system by slightly losing up the cap and selling a Prius with a bad head gasket. It will have min coolant loss and you wouldn’t notice until you drive on a hot summer day. You won’t suspect it in the cooler weather. Hope this helps somebody. My car had 223000 miles when Cylinder 2 was misfiring then I notice loss in coolant and the coolant cap was never tight or had the o ring missing. These Prius are known for burning oil because of the pcv design causing engines to start to blow head gasket and fail. There is a lot of info on priusprime forum about the 3rd gen Prius and adding a filtered oil catch can , just google it.
How does a pad PVC system cause blown head gaskets?
Thanks...
TIM Flugaur-Leavitt The pcv valve is letting blow by gasses into the intake manifold , which is normal , but when you have worn down parts , like piston rings , this is letting more oil in your intake manifold , past the pcv valve and just sitting in your intake manifold, when you start the engine it will suck in this oil stuck in your intake manifold and shake the engine so hard that I believe hurts the head gasket or wears it down. I haven’t had a hard knocking start in the winter or summer since I installed a filtered oil catch can, I got the information from Priuschat forum. Here’s a link, in my opinion I probably need new piston rings , I have not done a compression test , but I now burn a quart of oil every 600 miles.
priuschat.com/threads/oil-catch-can-eliminate-that-knock.179588/
I put Lucas fuel system cleaner in every fill-up....108000 miles...no oil consumption.
Thanks for sharing your repair experience. It will be very helpful when I do mine this week. Thanks again and happy Easter 👍
Use a good head gasket from Felpro
I did same a while ago car stared shaking changed spark plugs and did the clean up took me 2 hours to do it and now my car has 280k miles and works very smooth
th-cam.com/video/U50T-hNdCnw/w-d-xo.html
Great video. Unfortunately I have tried everything, manifold cleaning, new spark plugs, coils, cleaned EGR...even got a MAP sensor swap....still getting the "death rattle". All signs point to the head gasket. I saw another video that showed if you get a long pressure sound when you open your coolant reservoir, it's a head gasket issue. I suppose that's where I'll go next! 2013 Prius V 185k miles.
Yep, super common.
Link to that video? Cheers, as. I have that.
Sorry, I didn’t take a video of that. I got rid of the car. Sucks because I actually really liked that car, but it was basically dying.
You should have recorded the dismantling process would have been great but thanks for the video
noe nava nava if you check the description I linked the video of the guy who goes step by step on how to do all this.
I loved this video. How you walked us through the problem, how you solved it and how much you spent. Thanks.
This cars head gasket was blown. Keep reading the comments. This solution didn't fix sh*t. It just delayed the inevitable.
th-cam.com/video/U50T-hNdCnw/w-d-xo.html
@@Tuck_Frump yeah lol I learned that later on after leaving that comment. I had to do a headgasket change and it fixed it.
Priuses are known to have that EGR issue. Best to replace the EGR and the intake. Cleaning is a pain, but depends on your budget of course. Toyota actually had a TSB and recall for a while on the EGR
I have a 2012 Prius with 260,000 with exact same noise. I tried almost everything. Nothing worked. Until, I saw a video regarding the fuel injectors. I pulled them, had them cleaned. That was it. Problem solved. Try this first, before spending more money.
I couldn't believe how easy it was to fix this yourself. Try it!!
Still pull the number one spark plug and look for coolant in cylinder
I have the same engine knocking symptoms on my 2012 Prius. The knocking only happens occasionally especially after short trips. I hope it isn't a head gasket problem. I will keep driving the car until the symptoms get more severe.
@drew michael thank you I just had Toyota diagnostic test done and they want 4000 to replace the gaskets. My car has this same exact sound. But not as bad. It just started
@drew michael UPDATE..6/14/20. It was a leaky head gasket 3,811.89 bucks later, Toyota fixed it and back on the road hopefully I'll get another 100.000 miles. If your car is making this noise 99.9 % it's a gasket. Get it fixed asap. Thank you all for your advice and suggestions
humninbird40 I don’t anticipate putting big money like that into this car. At almost 200,000 miles I will be due for new hybrid batteries and EGR work and water pump and alternator and whatever else Murphy throws at us. It’s being used as a backup car for local road trips and that’s fine with me.
humninbird40 How many miles on your car now?
@@calvaryassemblyofgodsouthi8046 139.000 .
You had the plugs changed 30K ago so you "knew" they couldn't be the issue. Without visibly checking the plugs you cannot be sure. I once had a misfire that was caused by a piece of carbon getting jammed between the spark plug tip and the side electrode. Removal of the carbon fixed it!
I started using 93 Octane gas and changed the spark plugs and that fixed the problem.
will not fix a blown head gasket
@@metrork1 The problem isn’t a blown head gasket in my case. I did a compression check on all four cylinders to confirm. Turns out the EGR valve was clogged with carbon.
@@MeganChic it's still good to unclog the egr system. Your high quality gas will not remove the gunks
Heat shields were loose on my 2010 fixed the problem
That kind of shaking will not come from loose heat shields
Thanks
COOP
...
Olá... Sou brasileiro e seu vídeo me ajudou muito pois meu prius estava com o mesmo problema. Muito obrigado 👏🏽👏🏽👏🏽👏🏽👏🏽
th-cam.com/video/U50T-hNdCnw/w-d-xo.html
Estou com esse problema. Oque você fez?
@@leandrodemelo3234 cara durou pouco tempo e tive q fazer o cabeçote do motor. Vai aí em média 1300 dólares. Boa sorte
Opa amigo brasileiro também , o carro tremia cedo ou em marcha lenta, você limpou a válvula EGR e o coletor de admissão ou só fez a junta do cabeçote ??
@@RausterMoura rapaz eu andei com o motor até ele acabar e no final tive que trocar o motor porque fazer o cabeçote não daria mais jeito. Comprei um novo motor porque a mão de obra é o mesmo valor
I strongly advise anyone doing this to replace the EGR valve instead of just cleaning it.
Excellent video. I thought I was the only one with this problem.
This cars head gasket was blown. Keep reading the comments. This solution didn't fix sh*t. It just delayed the inevitable.
Really well done! thank you!
th-cam.com/video/U50T-hNdCnw/w-d-xo.html
Grate job buddy thanks for your information and vedio I have the same issue with my car 🚗 👍
Thanks for the detailed explanation!! I’n having the same issue and have gotten as far as changing out the cyl 1 coil, and still have the problem. I’m gonna have at this and see if I can’t get this done before my car appointment in a week. Great job!
Beth Eiess if you switch spark plugs to test, see if u can see coolant inside the cylinders
Will do. Also saw another video in which the guy said oil overflow got down into cyl 1 as well, and this started going right after I (too carelessly) added oil. It’d be lovely if that’s all it is, but since you cleaned the manifold, figgered I’d get at that while I’m at it, because mine drinks oil like cheap beer. Do you know anything about that/if a lot of oil consumption is normal? Mine is 2010, lotsa (180k+) miles.
I’ll also check out the head gasket vid. Thanks again!
@@betheiess5492 Mine was burning about 1 quart every 5000 miles, instead of adding a quart, I just started doing oil changes every 5k instead of 10k
Beth Eiess it’s the head gasket. Always is
I have done the same and no more rattling sound in the morning and that was bad all the pipes almost blocked now all cleaned
Do CHANGE PVC it’s needed
Very good video thank you! Does it result in HG blow?
Another thing are the egr passageway INSIDE the intake manifold. You'll see these small holes in each of the runners, they lead to the egr pipe. I also used simple green, works fine.
My Prius gave me 300k until I need it to do mejor repairs.
do you do any basic maintain up to 300k miles?
Probably wasn't a problem-prone GEN 3.
@@amazoidal …my gen 3 with 188k runs smooth a silk. Changing oil every 5k with Mobil one is helpful.
@@DarkstarDarth When the EGR cooler becomes plugged there goes your head gasket
My daughter is currently at 242,797. Lol
Omg that is the SAME issue I have on a 2nd gen. With engine knock. Misfire from oil and dirty plugs but my 3rd gen also threw a code recently for this.
it’s common head gasket problem
My daughter has a 2006(ll gen) and is making the same noise. Changed plugs,cleaned MAF sensor,and,intake. Still doing it.
Did you clean the fuel injector system?
Does the coolant level keep dropping?
I got P0301 code on my 2011 Prius with 250,000 Miles. And loosing Coolant and vehicle shakes when parked with the engine idling. sometime White thick smoke as well. That is Head Gasket issue. But since my mileage is already 250K, I decided to swap whole engine at Independent Car repair shop in San Francisco. Take only half day and Cost is $2100.
Where did you go? Mine has 98k miles. I have replaced almost everything..
@@SurferTy P & N Auto Repair located at 77 Charter Oak Ave, San Francisco, CA 94124 Tel: (415) 467-9144 Contact Person name is Lau
@@yethandar123 thanks!
6 mm socket fits that stud on the side of the EGR no need for torques and it takes 20 min to remove EGR cooler max and don’t put the bottom bolt on EGR cooler
Very helpful
This is exactly what I’m going through now
Change the head gasket before you bend a rod. See "Gasket Masters" videos.
Yup. Went through all the cheap fixes and still did the head gasket and issue finally resolved.
It's always the head gasket! Finally sold it last week for a couple grand, didn't want to risk opening it up and finding a bent rod and a million other things can go wrong.
@@reddv1 it’s not ALWAYS the head gasket. He has the problem without head gasket issues and so do I and lots of others. If you do not fix the issue that’s causing the problem NOW it WILL BE A HEAD GASKET ISSUE as a result
These engines really do blow head gaskets. It’s not if, it’s when. People think they have fixed it, but even with “headgasket fluid repair” it’s gonna get worse.
Same thing on my 2012 prius. Dealer replaced intake manifold and all is ok. Before that replaced plugs, coils and injectors ond was still shaking.
How much did it cost you?
Great video again
Thanks for the info as I am currently trying to remove the EGR cooler. I wasn’t real excited about removing the hex studs from the back. The bottom one is not that easy to get to as well but at least there is only that one and the top one! I have Purple Power and gas to soak it in, not sure which one will work better.
This cars head gasket was blown. Keep reading the comments. This solution didn't fix sh*t. It just delayed the inevitable.
i had the same issue but turn out to be Head gasket was leaking
I have no idea if it was the fuel injection or the egr....what was the solution??
I hane a 2011 prius .....32000mile no miss fire ..
Sparplug every 60000
Air filter every 3 oil change
Fuel injucter cleaner every 30 full tank gas pce valve every 6 month
Clean a ejr and intact manifult 2 time in 1year
I love my car
Last 2007 i drove it over 700.000 😎😎😎😎
Check the coolant level. If the coolant level is getting low, the coolant is leaking into one of the cylinders.
They usually develop a blown head gasket. :(
I've had the same problem with my Prius.
WELL IT LOOKS LIKE THE COOLANT RESERVE TANK IS FULL THAT'S A GOOD SIGN
I did the same on my car
But I also installed oil catch can.it will save the cat converter fro clogging .and probably will not cover the cooler. As if the engine do not
Burn oil it's good for all those parts.
From clogging.and the engine and egr cooler will not burn oil
Use BG products at least once a year after winter season. I use EPR before oil change. Then add MOA to your new oil.
what are your acronyms? lol.... I'm about to put K Seal in 07 Prius, as i noticed loss of power uphill, some rattling, and A BIT of lost coolant. 263K
I had the same problem, its spark plug number 4 far to the right, make sure you tighten the plugs very good because oil seems to be getting to spark, It solved mine
Did it really solve your problem? I have similar problem and I’m losing my mind
@@mikejohnson9398 yes,
Since I've posted the info I havent heard any sound yet
@@mikejohnson9398 in my opinion this issue is related to 3 faults, spark plugs, spark leads or head gasket that might be leaking anti freeze into one of the pistons
Thank you - I will give it a shot and see what happens
You can use a 6mm for that e8
Hey Seahawk! I know its been almost 3 years since this post. Did any of the knocking on engine start-up return in the months after doing all this? Reason I asked is because later discovery of the P0301 Cylinder misfires might have something to do with a bad head gasket.
did you figure it out
So it wasn't the head gasket and this fixed the issue?
I used bar's to fix the blown gasket but broke the water pump right away. Pain in the ass.
2011 prius 220k
The next time I will replace the water pump early. I feel that is what is causing engine to overheat and blow the head gasket
@@realrandomcarstuff changed water pump and spark plugs and car runs like a champ again. 👍
That’s awesome. I think people really need to change out the water pump at 150k miles before it fails and causes the engine to overheat.
@@realrandomcarstuff bad gas & bad oil or oil change not being done in time... Flushing coolant every 100k miles are all most likely culprits for causing a bad head gasket
Yes you cannot use stop leaks in hybrids or stop leaks for a/c l
Spend the 20 dollars and install an oil catch can. These cars have a lot of crude oil gong back through the intake manifold.
Denniss7420 any recommendations on brand or where to mount it?
@@realrandomcarstuff look up nutz about bolts channel. He has a oil catch can installation video.
LOL, though this was only used on racecars. Guess i have two cars that are polar opposites that need a catch can haha
id you take video or pics of how clean you got the cooler before reinstall?
And im back. Put new plugs and coils(hope that wasnt a waste) in. Pray to god im not gonna hv to do all that. N for coolant I would drain maybe a third of the coolant. But knowing how the people put the prius together, sure that will be a pita to get to also.
First thing I thought EGR.. Common issue with high mileage cars..As it goes away real fast...You can see no coolant lose. A bad coil will not go away.. Injectors will fail but again. They don't fix themselves..
So don't guess...As it will save you a shot load of money...
So was it egr or the head gasket?
@@gibson7654 Most cars it's the EGR.. But you also need to test the coil..Just switch one the suspect one. With one on the other side of engine...
I would add. The way his car was shacking. It was obvious..As it went away once it got warm...
@@WizzRacing would it be the coils if it only shakes for 10 secs after start? I'd think it would shake all the time if there was something wrong with the coils or spark plugs.
My 2010 Prius just started knocking. Check engine light turned on. It has 170k miles. Damn mine does exactly the same thing. Cylinder 3 is misfiring. Any input?
Great video
hey bro you should tell people you didn't fix the problem because i changed all that it took a week off and i come back stronger
I thoght it was the headgasket...common problem on 2010 to 2015...if you have that shake and lossing coolant is your headgasket
Good job Bro!!
Thanks your video....
what is the name of that key please !
can you repair my car has the same fault 2011? Please live Washington state
What about the head gasket
Let me get this straight...there's an EGR valve, and EGR cooler, and an EGR pipe? And from comments, it sounds like perhaps just cleaning the EGR valve may fix the problem? (We already had the intake replaced...that did not fix the problem...the mechanic said the cooler and valve/whatever were NOT dirty...hard to believe, but I believed him figuring he actually laid eyes on them...but maybe he didn't.) Thanks...
William Salopek those three pieces make up the EGR system. U can only see if the pipe is dirty easily. The other two u need to dismantle to see for yourself. I don’t know how many miles u have but that cooler and valve will totally clog up with carbon if it’s not cleaned
@@realrandomcarstuff 225k miles...the problem just started a few days ago. We bought the car with 99k miles 5 years ago...I doubt the EGR system was ever cleaned, but I can't be sure. The local garage, who I trust, after reading the code (cylinder 1 misfire, multiple cylinder misfire) replaced the spark plugs (which they said were in very bad condition), and when that didn't fix it, replaced the intake manifold as per Toyota guidlines (but I think that's about cold morning condensation and water in the system)...so we are about $1300 in at this point. I had mentioned to them that I read about carbon build up, the EGR clogging issues, etc, and they said they looked and they were clean. ? So I wonder if they really ever ACTUALLY looked? I have a call into them now...when they call back, I'll dig deeper as to whether they actually LOOKED at the pipe, and request they tear it all apart again to do the cleaning, as I imagine with 225k miles, there is simply no way that system isn't clogged...do you agree? Thanks for your help.
William Salopek you should not spend any more money on it replacing things until you know for sure. The first thing they should test for is the head gasket and see if it’s blown. If it’s still intact then you should clean the EGR, replace the water pump and coolant. It could be you have coolant leaking into cylinder 1. You can watch my K-Seal video and see if that solves your problem. If it does then your head gasket is done and you should just get rid of the car. The amount of repairs on a car this old is not worth it at this point.
@@realrandomcarstuff On our first visit to the shop, about 2-3 weeks ago, I asked them specifically to check for head gasket issues, and they said "absolutely" the head gasket is OK...that said, I don't know how they determined that. Why are you saying to replace the water pump and coolant? I have an appt for Monday where they said they will reinspect the EGR system for clogging (for free)...so we'll go with thatfor nowand see what happens. So you are saying that even with a good head gasket, that collant can be leaking into cylinders? Thanks...
William Salopek the head gasket replacement is $3500. It usually fails due to overheating. The water pump is electric so if it fails u usually won’t know. The water pump is $220. Cheaper to just replace it and know it’s good than to squeeze every bit of use out of it and risking your head gasket. Even if they say the head gasket is good, I would try the K-Seal and see what happens. U can do it right now and know in the next few hours if your issue is a coolant leak. But you definitely need to clean out your EGR. I have not talked to anyone who at 200k did not have a clogged cooler and valve
It's not fuel injectors. The knocking is caused by oil pooling in cylinder number 1. where is the oil coming from? It's from pcv valve going into air intake and then cylinder number 1. This is toyota design defect and only way to resolve this issue is to install oil catch can between pcv valve and air intake.
He seems added one later
Good job on maintenance but looks like Coolant level is low... at 10:41 ... it’s weeping into cylinders...boroscope will show it, just hard to get to spark plug hole...do a simple head gasket job and install oil catch can of some sort... still bad design by Toyota. But still runs 400K +...when you start it -not neutral but put in drive or reverse will alleviate shutters and knocking till fixed
Very good
where did you get your ignition coils for $77? is that for all 4?
Amazon. $77 for 4
@@realrandomcarstuff but check the comments, not perfect deal. Dealer sold those around 100bucks.
you didn't have to drain the oil or coolant, correct?
Would have been easier to drain the coolant. Wouldn’t have needed to clamp off any of the coolant hoses then. Didn’t need to drain the oil.
@@realrandomcarstuffThank you - understood! I'll drain it then, but need to figure out how much its gonna take to refill, and procedure on how to refill (which, suspecting, would be easy)
@@igorl8367 there are a lot of videos on changing out the coolant. It’s very easy. Just turn a knob under the radiator and it drains. Close it and then refill.
put Lucas injector cleaner ,engine light it will go out,and stop variations it work for me
Toyota hybrids *really* need top tier gasoline. (Probably applies to the Mazda Miller cycle engines as well.) The Miller valve timing causes soot left over from the exhaust stroke to be regurgitated into the intake. Without the higher detergent levels in top tier gas the carbon in the intake system will cause this sort of trouble sooner or later.
Why does the engine knock and rattle like that? I have no idea, but be aware if the engine is shut down right after the ICE starts it is normal for it to clatter frighteningly for a half minute or so when it is next started.
Top tier gasoline brands are listed at www.toptiergas.com/licensed-brands/ - it is by far the cheapest way to deal with the fuel intake problems.
(Nothing but Prius in the family since 2002 - no more reliable car in my experience.)
good work, you would be surprised how many people are willing to Shell out thousands just to fix a $50 problem
Thanks, it was all the comments on PriusChat and the videos I referenced that gave me the confidence to do the work myself. I have a lot better understanding of how my Prius works now.
It’s 35$
@@VeganAtmosphere what did you do please to fix your car
$50 but he said he spent many hours so..trade off?
still haven't removed original spark plugs at 202800 miles. and I know it's way overdue for a oil change.
Can you update this?
Thanks 🙏
I got stuck on that clip also 😂👍 well done
Hey bro please reply I need help
This same knocking is happening to my 2014 with 225k on it. Knocks at start and sometimes from stopping when the engine kicks back on. Egr was SUPPOSEDLY cleaned this year at a shop. Replaced plugs and nothing besides running a little better.
I drive is hundreds of miles a day some days and thousands a month. No other engine issues have come up. Check engine has been coming on for misfire cylinder 2 but seems to resolve itself. Any tips? Bringing to the mechanic tomorrow.
Is your coolant level dropping? It’s probably leaking into the engine via the head gasket.
@@johnnywang206 Will find out today at the mechanic. Didn't use the car all weekend and it didn't shake with cold start or have any issues driving 15 mins to the mechanic.
@@johnnywang206 mechanic is saying the engine shaking is coming from the transmission. Hmmmm
Can you tell its the head gasket by the misfires of the cylinders
My code says 1 n 4 cylinders
humninbird40 you will only know by removing the spark plugs and looking inside for coolant
Also don’t forget to change transmission oil
There is no recommended hybrid transaxle fluid change interval. I have never replaced the WS transmission fluids in any of my Prius cars - the 2002 has over 200K miles on it. The transmission is essentially a planetary gearset; no clutches, no belts, no valves, no synchros, no shifting.... Change the fluid as often as you would a rear axle on an RWD vehicle - check and fill every handful of years.
I changed mine at 80k and it was disgusting black. Change it.
Hello amigo, I have a question!
You got the same problem back after you posted this video or that fix your car issue?
Luis Rodriguez see the K-Seal video I posted for a follow up.
thanks you :)
Can you please put a link for the brush and wires you used to clean the EGR cooler?
Set of 15 Cleaning Brushes and 10 Cleaning Needles - for Small Openings / Tubes / Pipes - for Example: Spray Paint Gun, Car / Motorcycle / Scooter Carburetor, Pet Feeding Bottle, Coffee Machine, etc. smile.amazon.com/dp/B07D8QG6M4/ref=cm_sw_r_cp_api_glt_fabc_W42E8HS0EJHWFESXZ50M
I took my egr cooler to the car wash and pressure washed while holding it under my foot it was amazing how much dark coffee like thing that came out till nothing left inside it I even could see through the other hole but didn't fix my knocking
@@axmed711 hopefully you figured out the knocking. Here are some cheap and easy fixes. I assume you replaced spark plugs
1. Use scan tool to see which cylinders are misfiring. Change coils around to see if the coils are causing it
2. Change the PCV valve, only $5 but could be giving you issues
3. Clean throttle body and MAF sensor
4. If burning oil install oil catch can
5. Check to see if the EGR is stuck open (I assume you did this already)
6. Drink a beer or choice beverage
Pls I seriously need your help. My location is Nigeria. There are no mechanics here who can really work on hybrid cars.
For the past 2 months, I have been having rattling and knocking sound. With no error codes. I cleaned the whole egr systems, cleaned injectors, changed spark plugs, cleaned throttle body, cleaned PC valve, Cleaned inlet manifold, I have oil catch can installed for about 5 months now. Upon all these, the car is still rattling and making knocking sound. Especially when it's charging the HV battery.
If I drive fast the sound disappears.
My coolant doesn't shot, my engine oil doesn't have water in it but I noticed the oil does shot. So I can't say it's blown head gasket.
And today this new incident happened.
Now if I remove the 12v battery head for 5 minutes and put it back the car starts on ev only after 3 to 5 seconds then car trys to start the engine and the ready light goes off and check hybrid system light and other error lights comes on on dash board.
Is this a sign that my engine knocked?
Will Changing the crankshaft position sensor solve the issue?
What exactly should I do?
The car has 145,000 miles on it.
The error codes it shows using toyota techstream now are P0335, P0A0F, C1259, C1310
A Facebook guy reminded me when cleaning intake manifold. There are four small holes. Did you clean them all? (Feel your job is through enough
Did you ever get this fixed? I'm having the same problem and I read from another video that someone tried replacing the timing chain tensioner. I haven't done it yet but I'll try it this week. Hopefully, it will fix the roughness.
PLEASE HELP!!!
I have a 2012 Prius Plug-In (now called the Prime) and you MUST put car in the "Power Mode" and you will have no problem passing cars or goin up hills. My Prius won't move much if on Regular Mode or Eco Mode; but Power Mode feels like a "normal car".
I also drive Lyft & Uber and in 2.5 years I put 310,000 miles on my 2012 Prius Plug-In Hybrid... which also got me use of Carpool lane with no passengers
I've only done 3 oil changes... one for each 100,000 miles... no other maintenance done
Now I have Cylinder Misfire and changed Coils, Plugs, and Injectors... doesn't fix issue. So mechanic says I need to rebuild engine or new engine... seems a bit much!!!
100k between oil changes, Jesus Christ man at max you should go 15k even on full synthetic. oil is cheap engines arnt. Maintain your shit better lol
I THINK CRANKSHAFT POSITION SENSOR
If you haven't clean the EGR systems as shown on this video, I recommend doing so. If the problem still persist, then it could the the gasket. Prius 2011-15 has a known issue with the head gasket and usually appears 150-160K depending on driving habits and maintenance.
@@nb18p18 what maintenance will make the head gasket last longer?
Thanks...
@@TechMaster2133 EXACTLY! I was reading and right away I thought, oil change once per 100,000 miles!!! And 300,000. + in 2.5 years!!! NUTS!!!! And I'm a girl and no better!!!
It’s always a blown head gasket.
Do you disconnect the battery source to do this job?
Javier Hernandez I did not. You could but I didn’t see the need to do so.