HYUNDAI'S NOTORIOUS ENGINE KNOCK - HOW TO FIND THE CAUSE OF THE ENGINE NOISE 

Very cool way to check for play... such an obvious way to check for freeplay, but there's NO WAY that I would have thought of that myself. Thankfully we all learn from people who are willing to share... you learned it from someone and I now learned it from you! Awesome!

Mario, I admire your honesty and also all the tips you give to us DIYers. I find there is usually no set approach to finding odd engine noises. You showed us something that can be very useful to us in the future. Thanks much for the heads up. 👍👍👍

Thats an awesome test. I've been slid by one of these dfi Hyundais. I had the same noise from the chain and found guide particulates in vvt solenoids. I did chains and guides. And low and behold it was bearing failure on cylinder 2. No codes no misfires.

Oh man old school wins 😁... I’ll definitely remember that test, great job bud 👍

Solid diag, no harm done. You did what you had to do to find the problem 👍

Just came across this video. RU-vid "pushed" it out to me. I've worked on my own cars off and on since high school, so I definitely like to learn and RU-vid is a great resource now-a-days. Good stuff! 👍🏼

Thank you for sharing this very useful trick tip. This would have saved me a bunch of time from figuring out a similar issue I had with my buddies 2013 GMC Terrain 2.4L. I ended up removing valve cover to inspect top end first, no issues found. Removed timing cover next only to find no issues with timing components. I Removed oil pan last and found a ton of metal debris in the bottom of the pan which looked to be bearing material. After inspecting all Connecting rods I Found Cylinder #4 had excessive play at the wrist pin. I was able to stick my camera inside to physically see the issue as I moved the connecting rod front to back.

Legit video man. I don't usually comment on YT but you explained everything so well. You're a talented dude. Keep on it.

Nice. Certainly didn't sound like a big end but you couldn't have ruled out a wrist pin. Always satisfying when you nail the issue, you shouldn't be kicking yourself on this. Great job.

Thank you for sharing this clever trick. I just got done taking the oil pan off to check for a sloppy rod bearing, only to find out that I can't even see the crankshaft. Now I'm ready to remove the spark plugs.!😊

Mario, that was a simple and brilliant check! Ive never thought about checking them this way.

Thanks Mario for the video , definitely informative, educational, I sure as heck would not have thought of that test but thank you for sharing .

awesome video. i learn alot watching your channel. am glad u share your tips nd tricks. i wish my coworkers were more humble like your coworker. so i wouldnt struggle as much. thanks man

Any time you find the problem, it is a good diagnosis. Always interesting and informative. Thank you for sharing.

WOW I totally forgot this tip for checking connecting rod bearings. I have never used it but I have heard of tech's doing it. thanks a ton for the reminder will definitely add it back to my list of tests. Ohh I almost forgot that test also works well on wrist pins to check for play there at well. That maybe why the sound is coming more from the top end and why is sounds different from a end rob bearing too.

Won't see that on an A.S.E. test! Great video.

That is awesome. Love that test dude. It dont matter how we learn something so long as we do.

Having worked on many Mazda 2.3's, I recognized that sound right away. lol I loved that trick with the extension. Thanks!

Nice find man! Got fooled the same way on an 09 Honda civic, swore it must have been top end but had one worn out con rod bearing. Mine had glitter in the oil to seal the deal. Lesson learned!

Great job man, love that old school stuff!

Really cool way of checking. Will remember it for sure! Thanks!

We stock the OEM filter for those, and have several come in the with a noise that the filter change did "fix" it, but many have not luckily for most of those cars were still under powertrain warranty and got engines replaced at the dealer

You sir are a diagnostic beast. Great video dude.

Thank you Mario. Good job. Have a blessed and safe week.

awesome job! We had an equinox in the shop with a strange knocking noise. We finally took it apart & found the piston wrist pin bushing completely gone on one cylinder & the other 3 cracking. Would have been nice to confirm with this simple test before taking it all apart. Spec for clearance is only .0002" this one had about 1/8" of play. Thanks for the videos & sharing your experiences!

I remember that Decourcey seminar. He was a very talented tech. I believe that car had a slightly bent rod from being hydrolocked and the piston was slightly below the deck compared to the others. That’s the crazy things you run across as a diag guy and is the reason you have to think outside the box occasionally. Thankfully we have things like the WPS500X to help nail it down.

Very informative, thanks for sharing your knowledge, I learned something today.

Great video. Have learned a few things from your videos. Keep up the good work.

Nice editing Mario. The picture in picture was cool. That was a great tip using the extension bar. The car doesn't seem to have that many miles on either. Too bad for the owner. The ending was classic for a shop.

great video keep them coming!!!!

That's a nice trick. It's nice to have team work makes things a lot easier for everybody. Where I work same thing team work. Nice Diagnostic

I like that trick. Will definitely keep that one in the back of my mind. 👌

Very slick trick. Thanks for sharing man

Thank you for the teaching. Perfect 👌

Yeeeeeees! Thanks a lot! You saved me much time for searching. You're great man!

super video. I always waiting for your new videos.thanks

Thank you buddy, I learned something new. Happy new year.

Thanks for the video. Makes a whole lot of sense. Great job 👍🏼

This is a great tip. I’m going to test my 2.7L V6 that has the tick/knock noise. Thanks

Follow up comment. This video got me thinking. I cannot remember seeing that procedure before. How else does someone check lower end bearing clearances without dropping the pan? This was simple and effective. Well done.

I’m glad I found this video!!! I’m actually going round and round with my local Hyundai dealship.. homer skeleton olive branch.. so my engine has the same sound spot on. They are telling me it’s the transmission!!! What do I do???

WOW that's very cool . As for the aftermarket filters causing knocks - yes Ford had the same issue and buddy would see the oil filters and deny warranty. Seems in Fords case some were knocking because media from the filters were plugging the oil feed.

Great diagnosis the idea is not to use the experience tools it’s like you did a very cheap tool you find the problem. Good job keep going my friend.Thanks

Youre gifted brother..thanks for sharing.

Yes, the great Dave DeCourcey. It was like loosing a library of knowledge. We are so lucky to have some of his seminars recorded. Sometimes using old school techniques is a win. 🤣 Hearing that air hammer reminded me of a SD classroom video he did. To funny. But hey, Britney still came in strong.! 💪😆 Cheers Brotha

Great tip and trick 👍💪 most likely a rod bearing or maybe wrist pin. Great job as always

Came here because I have some knock on my Veloster. I don't know if its the same problem (I hope not!) but learned a lot. I wish you were my mechanic.

I have an veloster turbo 2014, it makes a noise similar to a growl when it is stationary or when you press the pedal to accelerate and the revolutions are decreasing. Sometimes I hear it and sometimes I don't. Any suggestions or ideas of what might be causing it? Pos The car runs excellent in all senses.

Great work and good experience

Amazing way to check for piston rods play! I thought it was going to be a intake cam phaser oil pressure CVVT valve related problem...

Very good tip haven't seen that but it totally makes sense I know I'll make use of that.

Nice mario i know this is a 2 year old video, but it just so happen that it was on the first feed on my screen hahha, i will definitely try that test, but i work at hyundai mostly its always the bottom end, when i hear that kind of noise i will always call the shortblock because im just depending on my stethoscope. But atleast you showed a different kind of testing to rule out the bottom end. Thanks again

ANOTHER AWESOME VIDEO MARIO THANKS MUCH HOPE YOU'RE TECH BUDDY ISN'T FEELING UNAPPRECIATED FROM THE SOUNDS OF THE HAMMER AND THANKS AGAIN .

Hi !! from Puerto Rico had the same problem with my 2013 Veloster turbo stock with no alteration with only 63,000 miles only. Waranty deneid the repair. When I open for my surprise it had bent a rod.

i can dig it. thanks for sharing!!!

I have an issue but it’s where I switch to higher gears (4-6) accelerating it starts “knocking”... idle ticks sounds louder than usual as well... no engine light but whenever i do get up the gears to where it’s “knocking” it starts hyper flashing on and off

Damn. Thax for the vid and tips unfortunately I have this problem in my 2012 veloster. Loose wrist pins. 🤬

alot of us owners have grouped together on a few FB pages for the 1.6t (Gamma engine) and have found that while everyone recommends 5k intervals, 3-3.5k is best....I have sent oil out for analysis and both times the oil has been good and in spec, but the flashpoint was noticiably lower....also while 5w30 is recommended, some owners in hotter climate or who push the car have started using 5W40.....another car , the 1.5t Honda civic, is also having fuel dilution issues arising from the turdo direct injection, blowby and short trips in colder climates. Honda has addressed the issue with a ecu update and upping the weight of oil on the affected cars to 5w40.....translation: treat these types of engines old school - use great oil/oem filter and warm it up before heading out......also check your local dealer if you don't do your own oil changes....you'd be surprised how many use the wrong weight, semi-synth, or conventional then blame the owner/manufacturer after 70k miles.....and keep your receipts...Good Work Mario!

I have a rattle noise on the past few cycles after oil change 2014 accent could this be the problem w engine? It was coming specifically from the lower vibration damper where the crankshaft is and it was recalled

Wow, Learned something new, Great video

Makes perfect sense and I will definitely test it out on the next tune up. I want to get a few known goods first. This is what I love about you tube. Lol

Way cool - and could be my issue also. My 2015 N/A Veloster has 186k miles and am hearing a similar noise when engine breaking or slight pedal to maintain speed.

Very cool trick. Beats pulling oil pan to check any day.

great video keep up the good work

Thanks for sharing brother.

Good job man sometimes old school diagnostics works just fine. Haha👍🏻

Mario, Thats a new one to me... thanks for the trick!

Good diag man! Keep it up

is the problem the loud gurgling/low end noise ? Or the very fast clicking noise at 6:30 ?

Nice Call brother. Sounds like someone is cross threading a axle nut to 1000 foot pounds. Lol. We get too technical with diagnosing crazy electrical issues that engine mechanical issues get forgotten. Good job Mario.

Outstanding!

One trick that is extremely efficient and effective for con rod issue is killing spark on that cylinder. The noise will get SIGNIFICANTLY quieter on the affected cylinder when spark (or fuel) is killed. This not only confirms con rod issues but also isolates the cylinder with the issue. Just another method to know.

At the dealer they have special tester for that. It screws into the spark plug hole, has a dial indicator on top and an air fitting, it actually has little holes in it that push air in or suck vacuum out of the cylinder so the test is done at TDC and it pushes and sucks the piston and the dial indicator measures the play. It would be a lot easier to explain with a picture but the fitting has the air holes and the extension rod from the dial indicator runs through the center of it.

Yes, I heard that at 10:55 It sounds like a phone ringing. So that's what it means to get a ring job?

Nice job, I say life is full a little tip's and tricks, and this one was a good one. I can't imagine why anyone would have a serous problem with this method. The only thing I could think of is creating superficial scratches on the plug threads and the top of the piston. Out side of that, what possible real damage could be caused? Certainly the piston, pin , ect is far stronger then the force required to push the piston down with your hand right? Maybe carbon ?

I sadly have this issue and trying to figure out the best course of action. Love the car but I may either replace or rebuild the motor. I was considering just replacing the conrod bearings but meh.

I've got a 2015 Sonata that has a misfire code + this knocking issue. What's the solution?

Sorry Mario I hit the wrong button last comment. 🤨. But that was awesome with the find. It's hard to find older techs that want to share their tips and tricks or the trade. Great guy for that and who knows maybe he could start showing us tips and tricks as well on his or ur channel. 😁. Take care brother

How do you fix it? You change the pistons or the crankshaft?

That is awesome i love that i can't wait to try that lol might have to show my boss so he'll give something i can try it on 😁😋 amazing 👏👏👏that's a sub

Awesome...I know the video you are referring to. Do you think you could see that with an incylinder waveform?

Well done, That was quite a sound, Wonder what caused it...I always thought gamma engines were reliable engines...maybe it is turbo or GDI related.

Nice find. A+

So what was the replacement needed to fix it?

I know exactly the video by Dave DeCourcey video you mention. Awesome video!

Veterans in the trade know a lot of tricks. Cool video

great creative diagnostic...so how did you solve it?

My father has a similar rattling noise. Does this mean that the engine could be dead? (Also Hyundai)

I’m catching up on your vids, so I’m a little late commenting. It’s hard to tell from the video but it doesn’t sound like bearing noise. Although it does sound like a top end noise, not so much like a valve lash noise either. After your buddy old schooled you, I have to agree with Will Robinson, that it’s most likely a wrist pin noise. You hear it at the tops of the cylinders. Kind of a piston slap sound. Anyway, good job on the diag. Too bad the fix was declined. Those are the ones you take apart to learn from. You file away the sound in your memory so you know it next time. 👍

SO AFTER ALL THE GOOD INFORMATION AND DEMONSTRATION..IS THERE A RECALL FOR THIS PROBLEM ?

That is definitely a tough one. Do you think an oil analysis might have shown excessive amounts of metal contamination? Your videos are very educational and I enjoy them all!

Bonito vídeo Mario gracias . Me puede dar los nombres de las personas que le a ayudado viendo vídeos Dave decorsy I Michael ? Muchísimas gracias. Dios que le continúe bendiciéndoles para que nos sigan enseñando

I'll have to give this a shot. I have a 2013 Base Automatic. I changed the oil on it 2yrs ago and went with a Wix filter. I noticed it started making that knocking noise at idle and its very noticeable. However, sometimes it doesnt knock. Next oil change I put an OEM filter on it, same thing. I've installed a Catch Can inline woth the PCV valve. I've taken it to Hyundai and they charged me $120 to "diagnose" the noise as normal engine operation, which is BS. I even pointed it out to the service manager out in the parking lot before I gave them my keys. I've looked into recalls on my car to see if I could get it fixed, nothing comes up. I even mentioned to the dealer that I heard there were TSBs out there and people were getting whole new engines put in for this issue. They had no idea what I was talking about. I know my way around vehicles but something about working on these cars scares me a little haha! Glad I saw this vid, I'll give it a shot.

This is awesome

Great video brother. Yes, that's an old trick that is proven. I learned that years back from an old engine builder. Did they want to fix it?

Cherrr to your co worker that’s the way should be helping each other out . Bendiciones marito

I knew it was Rapping Rodney when i herd it! Cool test! never seen that before. I bet he Was the same tech that told u to try alternate fuel on that car u had with diesel in it.

how many miles till you you start hearing the nocking?

So would you be able to see a lower oil pressure. I'm sure if the light would have come on you would have said something. I know the video is old but what do you think about the oil pressure maybe helping to confirm as well. Great video though i am learning a ton from your channel.

Sweet tip thanks