Nissan CVT: Teardown and Failure Analysis - Part 1
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- Опубликовано: 4 сен 2024
- So now, after getting the 2010 Nissan Rogue back on the road with a new CVT installed, we finally have a chance to answer the most important question:
Why did the original CVT fail in the first place??
In PART 1 (this video) we start the teardown of the original CVT. The further we dig, the more carnage we find. But this is just the tip of the iceberg...
In PART 2, we complete the teardown and analyze the sequence of events to find the ROOT CAUSE of the failure:
• Nissan CVT: Teardown a...
Part 2 also includes a description of operation of this CVT, as well as discussing the "weakest links" and possibly explaining why so few of these transmissions make it to 200k miles.
Is it a design flaw, or lack of maintenance?
You will not see this type of information and failure analysis anywhere else. This is engineering-level stuff, and my true passion for finding faults in a broken system/device.
As always, I appreciate all the support, comments, and feedback!
Enjoy!
-Ivan
Ivan,
I want to thank you so much for your videos regarding the replacement/teardown of the Rogue CVT. My 2008 failed in exactly the same way yours did, at 188k. (Incidentally, I thought you might like to know I changed the fluid every 60k and only got 2k more miles than you did). I tore mine down and overhauled it. I replaced the ball bearings in the variators with hardened dowel pins, rebuilt the main pump with an improved valve by Transgo, and put a new belt in it. Honestly, it was a bit scary but it has been two months/2500 miles and it goes good! Total cost was about $600. Your removal/installation videos were a huge help showing what I was in for! Much appreciated and I love your channel! Keep up the great work!
You took a chance losing $800 by tearing apart. I for one really appreciate that. It's was interesting to see what failed and why. Well done Ivan. See you again on part two.
Thanks Wyatt! I figured a lot of viewers would be interested to follow along and see what makes this thing tick, and also why it stopped ticking so suddenly :D
When you snap a bike chain you not going anywhere, the same principle applies to a CVT chain.
WHEW NO FEAR IVAN TEARING THAT DOWN TAKES SOME BALLZ BUT THANKS FOR MAKING IT A LITTLE LESS SCARY. GUESS YOU'LL BE RIDING THE BIKE AROUND FOR A WHILE
how about losing $35k???? thats what i'm in the hole for with 2 failed cvt units on a pathfinder :(
nope. you can still roll home, my pathfinder had to be towed... $35K wasted on a junk car
My first CVT opening.....lasting 180k + plus miles with new technology is not that bad.
Improvements in the technology might warrant longer lasting CVT’s.
One of the best instructional videos I have ever seen, nice job.....
Thanks Mike!
I used to work as Nissan tech, Nissan's policy (at least when it comes to warranty) is that no one is allowed to tear down and rebuild CVT transmissions.
The belt is what usually fails and failures are quite common, they also can fail at fairly low mileage.
I'm really surprised you got that many miles out of it.
I know that Nissan had to extend the warranty on certain model years because of the high rate of failures.
Nissan overall in terms of quality is nowhere near the automaker they were in the 80s and 90s, things really went downhill when they partnered with Renault.
Anything they have built after 02 is quite bad actually, quality standards are very low.
Great video btw.
Yeah, if they would make inspection/replacement of the belt a maintenance item, then a lot of people who swear to never buy CVTs would change their minds about that, myself included. (Heck, they are pretty simple, compared to a planetary gear autobox.) Because I have no problem with how they drive, but don't want to have to deal with sudden failure, say in the middle of Death Valley, not LOLing.
Is there any way lubricating to try to prevent it. Can you run different fluids something like man said metal can only Flex so much before it snaps. I work at a printing company and I think I pallet straps are thicker than that. Aaw man twisting things back and forth twice and they break. I bought a 61000 mile Nissan Maxima about 3 months ago I wish I knew what I was getting myself into I ain't had any problems yet might be time to trade that sucker back in
Blame the French they suck.
which is a shame because renault really is amazing. Providing the powerplant for the majority of cars on formula 1 circuits. Too bad they cant take their amazing engineering and put it into passenger cars.
@@agems56 So true.
You amaze me with your knowledge and skill but also the fact you're willing to tear apart an $800 core simply to inform us. That's really cool. Love your videos.
This is telling us to change CVT transmission fluid every 2 years or 25,000 miles !!!!!
The true meaning of COMMUNITY🥲
I actually worked on a product design team on an early prototype metal belt CVT back in the mid-80s. I worked on the electronics and software but new the basics of the mechanical and hydraulic systems. If the belt has seen that kind of damage, the sheaves are likely scored. Tolerances between the sheaves and the little metal wedges that make up the push belt are CRITICAL. Likely the sheaves would have to be replaced.
Dark oil is usually a sign of excessive clutch material worn off or excessive temperature. Almost nothing else would cause dark oil
My guess is that root cause was failure to properly control the line pressure. This of course controls the force on the sheaves. If there is ANY slippage, it is "game over" !!
I bought a cheap 2010 Cube, the transmission just previously underwent a 'rebuild' attempt (very difficult process since parts are unavailable, especially the secondary pulley!! ) The secondary pulley was damaged and in this model Cube that pulley has an extra sensor on it which was damaged as well, argh!! , the pulley was repaired (attempted @ machine shop) but that didn't work, and this is the point that I purchase the Cube for $600. and start mucking about with it. I'm currently pondering a bit of a conversion Using a transmission from the smaller Nissan car (forget the name...) hoping I found a Non-CVT tranny but no such luck. I bought the transmission for $300 (comes without the 3rd sensor) only to discover (after paying) that it has a bad bearing at one of the output shaft bearing to the drivers side I think it was. I have the Cube transmission out already but It's winter here and I put the project aside until spring perhaps but I was disappointed to see that bad bearing. Obviously I will have to change some electronics like the ECM, and perhaps part of the harness from the donor car for the ignition and computer for it all to work so to trick the Cube into thinking it was the other vehicle without reprogramming anything at a dealer;
I was full steam ahead until I saw the bad bearing so Now I have to take that transmission apart and decide what to do... I could relate more about these failures but perhaps not at this particular reply as I've taken up enough space and this area my words will not be seen as much.
better just to torch it for insurance money and walk away
Secondary pulley seal can't take the constant pressure and vibration and especially when the fluid gets hot and dirty like transmission lady lol.
Dark oil is mostly likely caused by overheating of the oil, not by metal particles.
@@rjright7373 a bearing is easy, just find a company that can make that bearing or already has it for sale
I call these transmissions "slot machines" because of the wonderful sounds :)
Qusin111 that’s awesome!!!! LOL
@@georgeswindolljr1980 or because sometimes they last 186k miles or they go at 50k. It's a gamble
According to your intensive demonstration, I think the cause of that CVT failure is the wear of guide balls/grooves of the pulley due to the bad fluid.
Thank you for your very informative video.
Thank you for this excellent video of a teardown of the Rogue CVT. I liked looking over a great mechanic's shoulder as you dove into this project. Smart to video this, too, you'll have a better shot of getting it back together well enough to get your core charge back!
Thank you! Got core charge back no questions asked :)
I called it! In the Part 2 removal vid. Was second guessing myself after someone reminded me that you had lost oil pressure, but the oil pump must drive off the secondary. Having owned snowmobiles and atvs with a much simpler system, the mode of failure sounded exactly the same - no sound, just an instant neutral.
This is a great vid! Thanks for taking the time to show all of this. You'll have 100k+ views in no time on this one I'd bet.
This is a blast from the past! Here in the UK, back in the day, these trans were very popular in a lot of models.
Most failures involved exactly this in the video. More often than not, the steel belt would break and shatter the trans housing into big holes!
My colleague who worked for Nissan then, moved to a big secondhand car sales place. The bosses told him to remove any nissan CVT's and replace them with a manual stick shift conversion with quality parts from a scrapyard. The reason?......stick shift cars fetched £2000 more when sold.
Anyway, good job Ivan. As usual, epic viewing.
Ha! I wish I could make the Rogue a stick shift! That would make it much more reliable and fun to drive...well for me, not the wife lol
Nissan get's all it's CVT and regular transmission from JATCO (Japan automatic transmission company), the same people Subaru, Mazda, Mitsubishi, Honda and I think a domestic US manufacture too. That company builds garbage, the ONLY Cvt transmission anyone should purchase is by Toyota, they make their own and have been building them for over 20 years, they are proven, last hundreds of thousands of miles and are vary reliable. Never buy a car with a JATCO auto trans, always check first.
Regular automatic transmissions are pretty reliable. Most of us in America drive automatics or CVTs.
Ivan, you're the most brilliant mechanic I've seen. It sucks you're not in my state. Pennsylvania is lucky to have someone as good as you.
What's truly appalling about CVTs is not the fact that they can break, but rather the lack of serviceability. Ivan is correct that it's an inherent design flaw but only if it cannot be easily and reasonably cheaply changed out, which is the case today for virtually all CVTs. In a world closer to ideal, changing out a belt and pulley set would take a couple hundred (US) bucks and a couple of hours, and be performed perhaps every 80,000 miles or so. This is no worse than an engine timing belt in terms of downtime and expense. Most people could live with that. Moreover, the fuel savings realized by a CVT could pay for this maintenance several times over!
But what the fuel savings cannot even begin to make a dent is having to swap out a $6,000 transmission in a car whose depreciated value cannot justify such an expense. Welcome to disposable car culture. I could even live with disposable cars if they weren't so damned expensive! Gee whiz!
I learned so much from watching this video compared to the animated videos that use them technical words in a computer generated voice. Thanks for uploading this. I love it.
Fantastic video series Ivan! Although there was a lot of work involved in getting the transmission in and out, you saved yourself a lot of money. And what a mess inside that transmission! 👍
I'll preface this with 'I'm not a mechanic' but I'm amazed by your knowledge and how you approach each job. This tear down is enthralling. To me it's like you are sneaking another language but I really love how you explain everything to people with my level of knowledge. Great video Ivan.
what we have here is the standard drive belt falure this part performed as designed up to and including falure I know what's waiting and still won't miss part 2 as always lvan great video
Not quite :) You will see very soon!
Great Video. That’s why I drive since new a 2009 Mazda 3 s hatchback 2.3, 5 speed auto with 208,000 miles. I have been dumping money lately for suspension parts at all four corners and a trans module. A trans module is not a rebuild. I just got back at the end of a 5000 mile oil change interval from a 2000 mile Marathon trip in 50 hours. Car ran like a champ. Did not burn or leak a drop of synthetic oil.
Yeah ...Material science.. FTW!. Pulling the valve body sounded like you won some change in the local casino
More like the old school casinos... they all now go to these paper tickets
Like many other commenters, thanks for taking this apart at risk of the $800 core charge. I have a 2011 Altima with 126k on it. Planing to upgrade in a year or so but hoping mine lasts at least as long as yours did. I know many others haven’t been lucky enough to make even 100k.
Nissan Just authized us techs to pull apart the CVTs and replace belt/chain Assemblies under certain failure conditions for the Altima and Pathfinder I believe and this was only about 2 months ago...
however you are required to complete a CVT course which requires you to wait your turn.
so I won't be pulling a CVT apart for a long time.
looking forward to part 2.
What do you think about the CVT's used in 7th generation Maximas? A lot of the TSB's that I see specifically mention Altima's but not Maximas.
Joshua Kramer I have not had to replace any so far and I don't know of any TSBs that apply to the newest Maxima's CVT. Maybe they got it right in the Maxima? Time will tell.
My 2015 Altima SV is just starting to slip, going up hill, reves go up but no accelleration. What can be done before it goes completly ?
Excellent tear down! Im driving a 07 Nissan Murano and i hope to at-least get to 150k before the cvt goes out. Gives me a good visual of what will go wrong if it ever does. Thanks for posting this.
as soon as i knew about the problems with nissan cvt i sold my car with only 30,000 miles on it i heard about some cars having these problems with a lot fewer miles
MegaGrahamo you're not for Pennsylvania are ya lol
just Graham
What car did you own? Why would you sell off a car with 30k miles and no reported issues?
this man has made talking to yourself out loud in your garage profitable 🎉❤
😂👍
Please put those things on a work bench, my knees and ankles are killing me after watching this.
Seriously! I saw his head between his knees and my joints began to ache.
Stupid comment
Ivan is experienced in the art of the slav squat. Russians don't have time for joint pain.
my back ache after watching this
@@dil6969 In Russia, joints pain YOU!
So Ivan, It has been 4+ years since you created this series. I have to say that your videos were great as they relate to the average DIY guy who has a little confidence in doing stuff like this. I’m one of those guys. I may have to work on a 2016 Rogue and you made it seem very doable. So thank you so much. One thing I might have done while you were in there is to replace the starter. I’m glad you did not pursue the pickle fork on the CVT axel. Not a cheap part! BTW, you two are a cute couple.Happy New Year 21/22.
Happy new year!
Remember Ivan, per that Weber CVT belt video, there are 423 parts in that belt (assuming the 24 bands are intact)! Make sure you count them all!
Oh, and New Pig is only 30 minutes down the road from you if you need stuff to clean up your mess.
I spoke at length with the owner of my local TSI Transmission shop regarding Nissan CVT transmissions. He said that they've examined failed internals and tried replacing what they thought it needed and it doesn't turn out. Over many cars and months, they set out to become masters of this and came to the final result that it is only reliably fixed by replacing the whole transmission or the entire guts at once.
So you are saying this cvt transmission can't be rebuild? But to buy a new one...?
Best way to understand failures is tear-down and understanding what failed. Great way to learn Ivan! Belt is actually a great engineering design but with everything mechanical/electrical parts are subject to failure. 175K on a CVT is pretty good and Nissan's are pretty dependable. Maybe the CVT you installed will go even further.
That being said 300k+ is not uncommon for the Toyota E-CVT(aka. Hybrid Synergy Drive). To be fair it seems that Toyota, Volkswagen, Honda, Nissan, and Ford seem to be the only car manufacturers that even care about the consumer anymore(The biggest problem I've ever heard of with Volkswagen is people not taking the maintenance schedule seriously - VW seems to precision engineer their cars, so they can break easily if not maintained EXACTLY to the manufacturer spec)
After seeing this video I appreciate the dealer that gave me life time transmission warranty as long as I own my 2015 Nissan Rouge...
LIFETIME WARRANTY?? How did you get that?? That is amazing!
Yes, if you log to their website - it's there on the top:
"Home of Lifetime Powertrain Warranty"...
www.royalmoorenissan.com/
They seem to charge $4k over other dealers...wonder why xD
lifetime warranty, that you pay for :))
would expect a two year old car to still be in warranty.
Guess you will find out if the trans warranty is still good in 2019?
180,000 miles on a CVT with no fluid changes I think this thing had a very long life
Ripcord_res happy to hear that. Usually life of a car is 300,000 miles but whenever I see it someone’s car made past 150,000 miles, I’m already happy with it. Cars are meant to last a lifetime but sometimes it’s not reality.
We don’t know whether it’s the original or replacement CVT.
The Realist it still has some decent mileage on it regardless if it was a replacement or original one. Mines is coming up on 106K miles and still running strong.
My cvt on 08 Nissan Altima made it to 240k miles, switch to Toyota now.
@@08mario08 so you're about to switch to the superior AISIN transmission
Thanks for doing this; it was really cool to see how this all went to heck in a handbasket; couldn't believe the amount of metal you found in the oil pan
Look up the ATSG JF011E repair manual book it covers those jatco cvts. Probably $30 on Amazon.
Good Report, CVT is just a glorified snow machine clutch, we always carried a spare belt.
Awesome work Ivan. Its cool to see it getting teared down. Great cliffhanger. Cheers!
I am the 2nd owner of a 2011 Nissan Murano SL AWD 132,0000 miles, always serviced at rec intervals, etc, no towing, no crazy stuff, no severe stress on transmission. Live in suburbs of Portland Oregon. Owned it for 2 years and put 30,000 miles on it. CVT is now making a VERY loud buzzing sound (like a super angry hornet inside a tin can with a microphone next to it), especially on cold start up and appears cvt is about to give out. two local shops said the front pump/valve is failing and not distributing cvt fluid properly and only a matter of time before it fails and the only prudent fix is to replace the entire cvt, at $2740 for the Nissan Certified re-manufactured cvt +14 - 18hrs shop time at $90 - 150 an hour to uninstall and reinstall for a total of $4,500 - 5,500 which is outlandish for so many hours needed to uninstall and re-install a remanufactured cvt that maybe will last another 40,000 - 60,000, which is about the average for remanufactured 2nd gen nissan cvt. I'm so bummed. I knew about the cvt issues but I thought the 2nd gen cvt had been much improved over 1st gen and I failed to get a Nissan extended warranty and from 2011 Nissan did not offer the extended powertrain warranty to sad sack owners of 06-2010 Nissan's with notoriously bad 1st gen cvt.
Such is life...
Yes we pull them apart and rebuild. And fluid change 30 or 40 thou is important
Interesting. Makes sense it would be the main belt. It is under the greatest amount of stress. Still pretty impressed yours made it to nearly 200k. Seeing lots of videos of Nissan CVTs with similar failures well under 60k miles.
I can certainly understand you taking this risk with your core charge. I did transmission tear down and rebuilding in tech school and it was super fun. Failure analysis is fascinating to do, as it gives you a better understanding of how it works and the typical failure mode.
Nissan knows they have a problem with these units. A customer of mine who is a used car dealer regularly buys Altimas at the auction. About half have CVT problems. He takes them back to the local Nissan dealer and gets them fixed under warranty. There was no recall but Nissan extended the coverage and if the owner pushes the issue they will repair under warranty. Maybe that's the 120,000 coverage you mentioned on an earlier video. GM also had a big problem with the Saturn View CVT. Extended warranty, failures at 30,000 miles, and no update with the repair. Hopefully the industry has found the solution by now.
eldoradony I got 60 thousand on mine with a hundred thousand mile warranty so should I run it hard and drive it like I stole it or bring it in there and say Excuse me sir can you look at my transmission belt
Either way that makes no logical sense
Nissan get's all it's CVT and regular transmission from JATCO (Japan automatic transmission company), the same people Subaru, Mazda, Mitsubishi, Honda and I think a domestic US manufacture too. That company builds garbage, the ONLY Cvt transmission anyone should purchase is by Toyota, they make their own and have been building them for over 20 years, they are proven, last hundreds of thousands of miles and are vary reliable. Never buy a car with a JATCO auto trans, always check first.
@thesix107 I like Scotty's channel
It's not a "design fllaw". Jatco and Nissan actually ''designed'' the belts to fail so that people can BUY ANOTHER NISSAN. The belts have a finite (and defined/engineered) life-span; by plan.
Nissan should walk away from cvt transmissions and use regular 6 speed automatic or 8 speed auto
Edvin Nelius but they lose money that way
@better soc the new Camry has an 8 speed.
new ford trucks 10 speed auto. even crazier the corvettes have 7 speed manuals now. cant imaging shifting again after 6th.
Nissan get's all it's CVT and regular transmission from JATCO (Japan automatic transmission company), the same people Subaru, Mazda, Mitsubishi, honda and I think a domestic US manufacture too. That company builds garbage, the ONLY Cvt transmission anyone should purchase is by Toyota, they make their own and have been building them for over 20 years, they are proven, last hundreds of thousands of miles and are vary reliable. Never buy a car with a JATCO auto thrans, always check first.
no sir some people want to do nothing but speed limit so 2 and 3 cylinders are future for ice
I'm glad someone made a video of how transmissions should not be designed, it definitely ain't built like a C6
:)
Honda did a cvt in the 5th gen prelude... typtronic shift 5 speed auto. They fail around 160k and 200k
What an amazing piece of engineering. I have a 2013 Nissan Maxima 2.5 lit V6 mated to the 2nd gen Nissan CVT. A pleasure to drive and use. No issues what so ever. Change the fluid every 30,000 kilometres.
2.5 V6? What country are you in? In the US I think the V6 is 3.5L
The weakest link, literally! The engineers dropped the ball on this design
Actually there is much more to this failure than a broken belt...I'll have Part 2 up soon :)
Automotive maker - "Let's put a snowmobile clutch in cars, they are cheap to make".
.....the nightmare began.
Thanks for chancing your core charge to teach us!
186k without fluid change phenomenal, that's a lifetime.
That’s nothing. Toyota Sienna 300,000 miles original fluid. No issues.
TruAgape1234 We’re talking about a cvts lifetime here ...The Toyota minivan has a 6A ...
@@Mabeylater293 both situations are pure luck
Awe man part 2??? Wth i was getting in to this.
You got one more subscriber tonight buddy great work!!
This is the best video I think I've ever seen on RUclips
Oh course you fade to black for part 2 just as we open it up to see the destruction! What, did you learn that from Eric O.??? As always great videos Ivan I like to see what the other manufacturers are up to.
FordTechMakuloco Ivan has learned a lot from Eric O. He learned some video tips from him, and next week Eric is gonna rip off his shirt for a lube and oil change, that you're not gonna wanna miss!!!
FordTechMakuloco Ivans a lucky sod he has also been under the instruction of the guru himself. Keith from Staten Island!
apparently he's pretty greedy to try to charge viewers money for watching part II. next.
Naw, if he would've learned from Eric O., he would've been all like THERE'S YER PROBLEM LADY!!!! as he tore this down and found the shredded metal belt
OMG, I just bought one! Payments for 4 years. Thank God I have an extended warranty. Looks like I'm gonna need it someday soon .
The root cause of broken CVT belts in nissan’s CVTs is the week oil pump which wont work under stress and the pressure drops which wont allow sheaves to open and close at the time of acceleration and de acceleration and those sheaves break the belt.
Eddy Khan amen
right on man but you need 3-4 good big flat head screw drivers to make taking those case covers apart works like a champ man
Reminds me of Hiram Gutierrez! top work Ivan!
Eddie Martinez Hiram does yes.
I like Ivan but Hiram is DA MAN!!! Maybe in 10 years he will equal the transmission Jedi Master but it's going to take awhile. Hiram could have done this blindfolded.
Eddie Martinez Idk. ask Hiram. I think he gets supplies from special supplier. I'm not sure, I never asked 😅
Awesome to see inside these CVT's! We just bought a new car. During the research and shopping process I was hearing noise about this trans design. After looking at the functionality, I decided to stay away from them. We were actually sold on buying the 2018 Honda Civic; ready to buy until I happened to ask if it had a CVT: yes it does. In the end we opted for the 2018 Hyundai Elantra Sport. So far we are extremely happy with it! It has the Dual Clutch unit, not at all without it's own set of challenges under certain conditions like low speed creep in traffic up hills.... but the car has a GREAT Warranty on this part. Final thought: I just won't buy a car with a CVT. The tried and tested automatics out on the market are simply getting the jobs done. Saving pennies on gas millage is. IMO, just not worth the headache from breakdown potentials. Beside this, we are all going "Electric" sooner or later...
Thanks for the comment Dwayne! I'm not a fan of dual clutch either...I'm a traditionalist haha
I don't see why Nissan didn't just put the belt in a separate chamber, so the "kibbles & bits" wouldn't get into all the hydraulics. There is no reason why the belt couldn't be a maintenance item.
They do it as a money grab. Cheaper to replace the entire trans, than spend money on labor hours replacing the kibbles and bits.
Nissan get's all it's CVT and regular transmission from JATCO (Japan automatic transmission company), the same people Subaru, Mazda, Mitsubishi, Honda and I think a domestic US manufacture too. That company builds garbage, the ONLY Cvt transmission anyone should purchase is by Toyota, they make their own and have been building them for over 20 years, they are proven, last hundreds of thousands of miles and are vary reliable. Never buy a car with a JATCO auto trans, always check first.
Wrong! Toyota has issues with their CVT's too. It's just not a durable design.
@@DiMo28 The funny thing is CVTs actually drive pretty well with a powerful engine behind them...they can't take the power and fail! I'm still amazed to see Nissan putting them behind a V6 when they're still failing prematurely behind a 4 cylinder. I had a 2014 Corolla for just over a year, but not long enough for any long-term reliability data (got rid of it after a major accident repair). The CVT was at least a lot more responsive than any unit from JATCO I've experienced. I still miss the instant kickdown, just not the weak engine. Wish my V6 Camry could jump down a couple gears that fast.
It is on my side by side utility vehicle.
Great tear down video. My sister just bought a used Maxima with cvt and 110K miles. I see this repair in my brother in laws future. Thanks for sharing and potentially eating $800
Nissan CVT: Teardown and Failure Analysis is the title, but the alternate title is: Why did the Nissan Rogue Transmission went Rogue?
Or the Missus was doing major neutral drops.......
LOL I am trying to imagine my wife doing a neutral drop and chirping all 4 tires! I don't think she knows what a neutral drop is haha
Nissan get's all it's CVT and regular transmission from JATCO (Japan automatic transmission company), the same people Subaru, Mazda, Mitsubishi, Honda and I think a domestic US manufacture too. That company builds garbage, the ONLY Cvt transmission anyone should purchase is by Toyota, they make their own and have been building them for over 20 years, they are proven, last hundreds of thousands of miles and are vary reliable. Never buy a car with a JATCO auto trans, always check first.
@@oveidasinclair982 this is the second time I have seen this completely incorrect comment.... Subaru, Honda, Toyota, AND Mitsubishi make their own CVT transmissions. On top of that Mazda doesn't even have a modern car with a CVT (in the US market anyway) stop spreading this.
Dakota Morgan You’re actually the one who is incorrect here. JATCO was the transmission division of Nissan for quite sometime, as decades passed. They eventually started producing transmissions for the following manufacturers: Nissan, Mazda, Subaru, Isuzu, Suzuki, BMW, Volkswagen, MG Rover Group and Land Rover. They eventually broke off and became an independent company that spread their production to other manufacturers. Honda and Toyota rely on their transmission divisions for their transmission. Toyota uses AISIN for example.
Btw, Mitsubishi has used JATCO transmissions in the past before going with INVECS.
@@oveidasinclair982 this is your third bullshit post
Great video! Thanks for showing us a transmission that I have always been curious about wanted to see what makes it tic. Great photography and narrative.
This is why I will buy nothing but manual transmissions. There are till plenty of new car models made today with a manual transmissions... Just have to be willing to travel and pick one up.
You might have to settle for something smaller, but its better than dealing with this later down the road.
Good luck though Ivan on the new trans. You are in my top 5 favorite techs in YT. No drama, just get right to it.
I don't know Aristotle, I personally prefer a manual as well, but synchro's wear out, the constant mesh gears basically work harden and spall, linkages develop slop, etc... All replacable and it's unlikely to leave you without any sort of drive on the side of the road, but not really cheap to have repaired either.
President Donald Trump But hey Donald, they say presidents are not allowed to drive cars themselves ;)
President Putin, I thought you drove a 1970's ZAZ968 on the weekends: ;)
But i bet you dont have a big nasty
Bad Drivers of Hurst Euless Bedford The main thing you need is a good shop press, maybe a set of mics, a manual and the discipline to not cut a single corner... ANYWHERE along the way or you WILL be redoing it.
Thank you for sharing brother 🙏🏼
Really, really appreciate the content.
God bless
Thanks the the video Ivan! Can't wait for part 2
Always was curious oh how CVTs self destructed. Thanks man!
Thank you for video, looking fwd. to #2 ! You may of found a gold mine, in re-manufacturing push belts !
I talked my parents out of purchasing anything with a CVT transmission for the very reason this video exposes. All makes and models with CVT transmissions are susceptible to the same failures. On their contender list was the Rogue, Honda CRV and the Hyundai Sante Fe Sport. Ultimately the bought the Hyundai as it was the only vehicle with a proven normal automatic. Crisis averted...
great video Ivan the new unit whining is most likely fluid check your repair info u have to use a scan tool and check the level at a specific temp and with the engine running put the fluid level between the lines not at the bottom or the top and the wine should be gone best of luck
Mine is starting to whistle or high pitch wine .im concerned
This was awesome. I would still send it back to Nissan with your video so they can see what happened. Tell them you want $1200 for the extra labor to do their work for them.
I have three Nissan's all have cvts all have 240,000 miles and going strong I drive them all practically and got them serviced every 30000 zero problems.
I have Nissan Altima 2013 SV 2.5L
My Car lose power while I'm driving , and it's not accelerating.
I call Nissan affairs customer service, I asked them if my car has a recall for the Transmission, They told me No, I ask them for Assistant to fix my car.
She said yes, we can open case for you but you have to go to the dealer for diagnostic test, I told her They Asked $200 for diagnostic test. I went there they said it's not the transmission it's the MAF need to be reprogrammed, and I pay $370 for that, problem came again next day, I call Nissan they asked me to do the diagnostic test again and pay another $200
I agreed, in the end they told me Transmission need to be replaced, Nissan Company called me and she said because you have high mileage we will not be able to assist you, I told her you know my mileage from the beginning why you asked me to went to the dealer for the test and pay $370 and $200 and $288. and you already had the decision in advanced?
I recommend every body don't buy Nissan their car is
piece of Junk.
They work with dealer to make money from you
don't buy their car it's not reliable
We already knew they were junk. The question is why did YOU buy it?
That's so sad, I feel bad for you, and thank you for the warning of Nissan treating customers sooooo baddddd😣.
Nisan is nothing but a bunch of crooks. Carlos Ghosn is a crook to the highest degree who brought Nissan down big time!!
Don't think I would want to re-belt this unit...I personally would be afraid of a "Rogue"(pun intended) metal chunk floating around.
Thanks for making this, my wife has a 2010 Maxima...always wondering how this worked.
A very enjoyable video , I say keep on trucking . With tenacity and research there no reason you can't refurbish this transmission , looking forward to parts 2. 3. And maybe 4 . Thanks from Canada.
2 parts will be enough for this series :)
I can't believe it lasted that many miles my Altima CVT Took a shit at 64,000 dealer put a new one in one month later it's acting up
Steven Clutz
Have you flushed your cvt fluid & replaced the tranny filter before 50k on the original?
And how many miles has new CVT reached?
The car now has 85k miles on it it’s had 3 transmissions put in by the dealer .. the struts went out all the wheel bearings have gone out the fuel pump went out the airbag controller went out .. No need to flush a transmission that can’t even reach 12,000 miles .. the third one hasn’t quite reached 12k yet .. Nissan Jatco cvts are junk .. I’ll never buy another Nissan .. There complaint line is a joke also .. The way they treated me on the phone.. I’ll trash Nissan the rest of my days ..
Steven Clutz
Usually the USDM Altima from 2010-now shouldnt giving you much trouble or jinxed manufacturing.
Ive met plenty CVT Altimas that have crossed 180K miles on the original unit, & in few cases without fluid flushes.
Overall the 2010s Altimas are damn reliable..
*I think the dealer sold you a BAD APPLE & THEY'VE BEEN SCREWING YOU OVER WITH BAD FIXES & MOST PROBABLY JUNK PARTS!*
I were you, I would take the individual dealer who sold your car to court
Nissan just had to replace the transmission in our 2015 Versa. It only has 38,000 miles on it! Man, these CVT transmissions are bad news.
I have a feeling you said more than ahhh when that torque convertor fell on your foot
I also found out that the Valve body holds a set of very tiny strainer/filters. Kind of like the mesh ones you find in most kitchen sinks. Might want to clean those out when doing a transmission flush.
Response to T59:
Thanks so much for sharing. Yes, it this case the belt did snap, but as I found out digging further, it was not the belt's fault! I wonder if this was the case in the lower mileage CVTs too, and what the driving style was. Based on the findings in Part 2, I would say that harsh
stop-and-go driving would kill this transmission very fast.
Nissan get's all it's CVT and regular transmission from JATCO (Japan automatic transmission company), the same people Subaru, Mazda, Mitsubishi, Honda and I think a domestic US manufacture too. That company builds garbage, the ONLY Cvt transmission anyone should purchase is by Toyota, they make their own and have been building them for over 20 years, they are proven, last hundreds of thousands of miles and are vary reliable. Never buy a car with a JATCO auto trans, always check first.
@@oveidasinclair982 I've had to buy three vehicles lately due to accidents. Pass up all cvts. Your saying that a correct move? I don't trust cvts to last 200,000 miles.
So stay away from cvt transmission
Very cool video. I really liked the teardown process.
Did you text your wife a pic of carnage with the text of "Well there's your problem lady!"?
wearever gold medalist
LMFAO I would've.. I straight up showed my dad how his brake pads wore when I did a full brake job on his journey and i was all like, with these pads worn the way they were (edit: and they were worn at an angle, forgot to mention that), and it was making metal on metal noise when driving... there's yer problem, dad!!!
Nissan should interview people like you that get their hands in there and discover the design flaws and failures.
A little redesign on the next year's CVT to make it more durable would be a good thing for Nissan.
"Well there's your problem Lady!"
Could not be a more fitting time to say that. dammit I forgot to use that line!!
Thank you for the sacrifice of that transmission for showing us what goes on in those things guess I won't be getting a Nissan.
This cvt made it to 186k? Shoot, many don't even make it to 60 and in some cases 33k.
Nissan really should have just stuck to better auto trans or offered more manuals.
Mines made it to 172k, currently doing a stepper motor replacement
@@lilnana148 how did the stepper motor replacement go?
Thanks for the sacrifice of the core charge. This was very interesting and helpful.
Wow that fluid was DIRTY.
My brother in law sent me this video. He is shopping for a new small SUV for his wife. I told him NOT to buy a CVT especially a Nissan with a JATCO. Just remember...CVT=CANNOT VECTOR TORQUE. I think Toyota is still gun shy of CVTs...I will never buy a car with one. I think any automatic with 6..8 or 10 speeds will be way better. BTW...that was a great video.
Ehh not all cvts are bad. Subaru has one tough and well built cvt. Had one in a 2012 outback so was the first generation even and 2011 legacy bought outback at 18k miles hit 50k miles in less than a year found one tranny shop willing to even work on them even then they had to order a 5 gallon bucket of fluid from the dealer and they didn't want the high overhead of the oil sold that one at 218k miles in 2017 and tranny was still like new. Fluid and filter changed every 50k and currently haves a 2011 legacy sane engine and trans as the outback 198k trans failed due to a very slow rear seal leak and was 4 quarts low on fluid before it was failing and it still drove when I pulled it just not well.
This was on 2.4 engine could you imagine a Maxima with 300 hp v6?
ronald bacza
The 04-now Maxima has its *true* engine power *weakened* from ~300hp/280lbft
To
~240hp/220lb ft as not to damage the engine bushings too much.
|
Ive met plenty of 180K mile 2010s Maximas running the original CVT
sorry for your Foot...guy. Thank your very much for your video..., i own a 2004 350z roadster with CVT...it maybe little different in design but, now after looking what you did taking it apart, i have a much better understanding generally how it works. so thanks!
Ah I see that CVT got you one last time!
lol that hurt!
Seems to be Avery bad design.
I just bought a Altima. If I would have known of the issues these transmission have. I never would have bought it.
I had a CVT in a 2008 Jeep Patriot for 9.5 years before trading for a Ram. Never had any problems with the engine or transmission. Control arms, bushings, tie rod ends, calipers, speed sensors and rear shocks/struts. Those all died (some several times) but the CVT was fun to drive.
I disagree with your comment on band metal fatigue. As long as the metal is not deformed further than its yield strength (at which time it will have a permanent "kink") it should be able to go through an infinite number of bends.
All bending will eventually destroy the structure of steel and cause a fatigue crack. That is one of the reasons (aluminium) air frames on planes have a end of life after nnnn hours / cycles (takeoff + landing). In high stress use, the stress cycle SN-Curve (Wöhler curve) is usually used. Amount for force has negative logarithmic response to number of cycles metal will last before failure. Anything exceeding the tensile strength of metal will lead quick and inevitable fatigue crack.
Hello Theoldwizard998
I have to disagee with you Ivan has the basics correct.
I have extensive experience in the metal finishing industry as well as Inspection. Non destructive testing and some destructive testing.
Keep in mind we are talking about a componant that is constantly in motion during service.
All metals depending on there formulation have a failure point. Repeated flexing and heating and cooling affect the structure. Work hardening of the material or in some cases( softening) takes place. Eventually the unit will fail. The job of the engineering department is to come up with a suitable componant design that will last the expected life of the unit it is installed in.
I do agree that in the case of the CVT there is an unacceptable ammount of premature failure. In Ivan's case with over 180,000 miles it is not uncommon for any automotive drive system to experience some type of failure. Improvement are being made all the time and I expect that the CVT will in future be more reliable just as automatic transmissions are today.
Without knowing the actual design specs. for the failed unit it is almost impossible to tell if the unit failed prematurely or not.
In any case I am enjpying the teardown video and will be very interested to see if Ivan elects to repair or reassemble and return the unit for the core charge.
How about you?
Brian & Shotty.
I was about to point the same. As had a life spam due stress and built up corrosion where the main fuselage sections join. They wont break appart but they are not longer safe at least for aerocomercial standards. There are some old plane there flying, you can see the vids here but pilots WONT CLIMB to its expected FL anymore, the a wont handle the required presurization level
It took me 5 years of hard riding to crack my previous hard tail aluminum mountain bike frame. Actually every mountain bike I have owned the frame eventually cracked from fatigue...even steel!
Perhaps time for Bamboo?
Ivan, you'll have to search it. But there is a CVT transmission assembly video on YT.
Thanks for sharing the adventure...
I will never buy a car with a CVT ever again
James Hart
All new cars are all cvt
@@hughujkbkilhhhfbhgyre6436 He never said he'd buy a new car.
Hughujkb Kilhhhfbhgyre And they’re all garbage.
@@hughujkbkilhhhfbhgyre6436 nahh, still plenty of manual and "standard" auto's out there in brand new vehicles.
@@mattyb7736 Most new bmw's went backt to normal automatics with a torque converter, because they had to many problems with cvt's. The new bmw 6 speed autos are pretty good, you can even shift them manually.
Thank you for the carnage. If there is one thing I miss about locomotive repair, it’s the high voltage carnage. High amperage and heat do amazing things. A lot of mechanical carnage on those beasts as well, but it didn’t have the same excitement for me as an exploding dynamic braking grid.
FANTASTIC WORK IVAN!! WHY DOES NISSAN USE CVT?? CAN ANYONE PLEASE EXPLAIN THE GOOD VS. BAD TO ME?
Nissan use this cvt trans because of 6 % better mpg and they cost less to build.
The good Toyota The Bad Nissan.
Cal Petty all manufacturers are going to or already have CVT cars, Toyota does.
Better mpg, cheaper to build, and they are designed to fail outside of warranty, so the customer has to freight the bill.
Listening to all those bits it sounded like you struck the jackpot at Vegas!
NO..........This is painful too wait......Teaser Teaser Teaser LOL
Just bought a Nissan Kicks. Getting familiar with CVT. great, great video.
"We found the problem for sure."
LOL!
Glad to see you've got the ubiquitous Rock Auto cardboard shipping box on the floor.
InHocSigno you know the average person doesn't drop a transmission said it in the garage with a drain have all them impact tools. I wish you'd be straight up with us and tell us that he rebuilds transmissions for a living
37.23 that crap belt!!!!!!!!!!!! grr.. from a pathfinder owner that had 2 failed cvt garbage units, i will NEVER ,, bu another CVT vehicle.. absolute crap. shudders when climbing hills. strange operation when cold outside, $10k change once you are outside warranty.. even the junk yard doesn't want it :/
Ashoud Anobetah
When did your CVT units fail?
-50k miles= this means premature failure
+50k miles= failure to flush the CVT fluid
A bench would have been it easier, 186,000 + miles is not bad for my way of thinking.
Thanks for all your efforts in showing us all your work and fixes. Ted Brisbane Australia 👍😊🏁🇦🇺