Is Toyota V35A-FTS Engine Reliable? Well..It's Not That Simple
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- Опубликовано: 19 май 2024
- Why was the GX550 named "550"? Plus the main bearing issue of Toyota's 3.4L (3.5L) twin turbo V6. A fair, comprehensive technical review of V35A-FTS, Toyota's new flagship engine for Land Cruiser 300, Tundra, Sequoia, LS500, LX600 and GX550.
Link to SAE paper for V35A-FTS:
www.sae.org/publications/tech...
Chris' RUclips Channel @ChrisDianasJourney
Chris' Instagram / pearl.the.200
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0:00 What GX"550" Stands For
1:37 Crazy High Torque
6:50 Over-Stressed?
12:18 Real World Reliability 
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bro bought a research paper. and talked to the man himself. subbed.
Subbed. 👍
Nobody makes these videos the way you do. Others do lots of speculation, but you do proper research and make it easy to digest too. And no fan boy bias! Very impressive.
I would say The Car Care Nut is another valuable source when it comes to Toyota/Lexus content.
@@AKBRONCOSFAN007love that man
4:40 This must be it! Taller pistons have more mass, increasing torque
There’s plenty who do it, and do it better
11 mpg ... I will pass .😢
Toyota’s reliability era is done.
once they see the results they will bring back natural aspirated V6 and V8 and remove the turbos.
I said this as soon as they decided to use turbos lol
lol you guys are funny I seen so many cohost from ford have easy 200k miles no issues and still going some into 300k
@@732harris They already saw the results. The engine is already 7 year old. It's been out since 2017 for MY2018 for the Lexus LS. And nope, no long term issues with them. And personally after tossing my NA Lexus due to electrical gremlins for a Audi, Holy crap I had no clue what I was missing. My 2020 Lexus really was 15 years behind.
It’s not just Toyota, it’s a common theme to decrease displacement and use turbocharging to add it back. They did it with the 300 series diesel also.
It’s emissions regulations and fuel consumption behind this, it won’t go back to the way it was imo
i am from Saudi Arabia, and here we have a lot of Lexus LS500s and land cruiser LC300s, and recently after one or two years we started to notes the increase of those specific turbo charged cars going to shops and dealers for this specific issue, and most of the shop owners are starting to tell the people to not buy these cars yet, one shop even reported having more than 30 vehicles come to hos shop for bearings issues, and started a new way of fixing by pulling the engine from the car without removing the hood to cut costs and save time.
Whats the most common problem in the lc300?
@@syedmohammedhussain799 same as lx600 or lx550 same engine = same issue dude
As a tech - here is a "Hack" when it comes to research papers. I had the privilege of working as a technician on research expeditions to remote locations and made a few friends in the industry. Look up the person who wrote the paper - ask them for the paper, and they will happily send you their paper- which, in most cases, they are allowed to do. The grunt that wrote that SAE paper probably didn't see a cent of your purchase sooo they will probably enjoy receiving your ping from somebody who actually wants to discuss and converse about something that they spent so many hours on getting published. Not to mention the opinion of the person who wrote the paper. -Magic
great point. i love it
that's awesome.
If you look at the oil capacity of these "new", smaller engines, it's an astonishing 7 quarts! Oil cools the engine and Trans-Am race cars from the '70s were known to run as much as 10 quarts for endurance racing
@@luislongoria6621 I enjoy knowing about these details lol. Thanks for sharing.
I will hit the like bottom for the reason you produced a quality video. However, remember the primary objective of the video--provide the complete answer to the problem. I am old school. I will wait to buy the smaller engine until Toyota truly discovers the problem.
I'm a mechanical engineer and I live in Huntsville, Alabama, and I know I've heard some of the old v8s and the new TT v6s are made here at the Toyota plant in town. I just google'd "V35-FTA Alabama" and one of the first results is a forum post mentioning that, *allegedly*, one of the shifts at the plant was not properly cleaning out the engine block oil passages for some length of time till they caught it and corrected them. This would cause metal shavings to still reside in the block, ultimately getting forced to the crankshaft main bearings once started, resulting in inconsistent and sometimes substantial wear & damage to the bearings once the engines get fired up.
If that's true, then perhaps the root-cause does not lie within the engine's design. Food for thought.
I think the LX600 is built in Japan. Not sure if engine assemblies are all built in the US then shipped but I initially imagined the overseas models to have engine plants closer by.
those are gx lx engine made in Japan. not the same crap out of our declining USA
@@shiroihachimaru4559 right and they are having bearing problems as this video talks about
@@shiroihachimaru4559 ha ha, so crap engines from Japan are better than USA engines that don’t have this problem? You are too funny. Let alone the ‘s’ word
@@georgeburns7251all the Japanese made Toyotas are more reliable than those made in Mexico and the US. Accept it already.
I’m a tech at a Toyota dealer in Canada and we’ve had 6 tundras with the same bearing issues. Some were work trucks and others were just daily drivers but they all failed in the exact same spot. All got short blocks and 2 of them were seized solid when they came in. One of them took so long the guy bought another tundra and then had the same issue with it so he bought a trd pro instead of waiting to get his first 2 fixed. We ended up buying the trucks back from him.
Wow 2 new trucks with same engine failure would push me away from the brand.
@@jonasbaine3538New Toyota quality is terrible unfortunately.
Last month my friend who is a service manager at Toyota walked me through our dealership's parking lot while I was waiting for my Camry oil change and he also showed me multiple 2022+ Tundras with the exact same issues. There is clearly a reliability problem with Toyota's recent "environmental" decisions, I'm sure the Tundra is not the last vehicle to experience such issues.
Bmw is the new toyota unfortunately!! 😢
engine is built tight and not enough space ford has abit more space and uses thicker oil while toyota uses mosy 0w20 oil or 5w30 for my ecoboost i use 5w40 and it works great make sure to do oil changes on time if not using to much boost if so then need more reg oil changes if not the oil will become diluted quick and the bearing will suffer frm lack of oil and in toyotas case of being built tough isnt the issue its not informing ppl about how to maintain a tt vechile engine i would recomend which i do to all my customers use synthetic oil if engine needs it and if its tt always put abit thicker oil and always check the oil to see if it has vescosity or not so if you use synthetic and says 12k km you change after 8 to 9 k depending how much boost was used and even earlier if towing, these tt engines need lubrication at all times...just like in the bed the faster you work the the more wet you hope she gets or else dry is just rough. lmfao
As an owner of a Nissan and Toyota V8 vehicle I appreciate this video. There is no replacement for displacement. High strung, stressed engines require frequent rebuilds and are for race cars.
Agreed 100%
Im simple man. I see tinker i click
hahaha dude I was literally thinking this verbatim as I clicked. Appreciate you
Same.
Thought u we were gonna say something bout tinkling a dick 😂
Weak
Are you a robot? Why is this comment everywhere.
Men of culture we meet again
nipples=turbo. I see what you did.
o7
What? Did I miss boobs?
Indeed we do.
wrong video 😆
My new neighbor is a Toyota mechanic in a very large dealership in Dallas. I asked about the 3.4 failures and he showed me a picture of 8 blocks in crates sitting out back. He says it seems to average ~20,000 miles when they fail, although he has seen it as soon as 6,000. I think it's happening more than people realize.
I used to be a tech at Toyota up until June last year. The earliest I've seen one fail was 32 miles. The owner took it home on a friday and it failed over the weekend.
I can save everyone a lot of time. Yes, the engine is overstressed. Yes, it'll be mildly better than another company's engine. But it will not be as reliable as the Toyotas we all loved in the past. I would not buy one.
I love my 40-year-old underpowered yet highly reliable 2H engine 😅
That's silly. Judging based on torque per liter is silly.
Engineering for high cylinder pressure is just making sure the block, heads, gaskets and rotating assembly can handle it. Most failures are NOT related to any of that, at least in OEM engines. Most of Toyota's reliability record comes from doing everything else well, like seals, valve timing systems, fuel systems, electrical systems, cooling systems, auxiliary systems like the air conditioning, etc. None of those things have anything to do with high cylinder pressures. At worst, they might require a more frequent service interval for the spark plugs.
And besides, the average demand profile will be that most owners won't be calling for 100% torque more than 1% of the time anyway. Most of the engine hours will be spent well below 50% torque output.
I'm not saying you're wrong. I'm just saying you can't make the call based only on max torque per liter. It borders on ridiculous, unless we're talking about real extremes like top fuel drag racing engines or high demand applications like aviation or marine use where they might be run at 90% throttle continuously for most of their life, and 140-lbft per liter in a soccer mom's SUV doesn't even begin to get close to either of those.
@@xtnuser5338 I value your opinion and I disagree with it. Have a good day
@@xtnuser5338
Great points
Some people just don't understand there are many factors involved
💯
You really made the most of your time with the chief engineer. I saw other videos interviewing him on the GX and noone was a prepared as you. Well done!
Undersquare geometry also generally works well for boosted engines. With better breathing efficiency, you don't need valves to be as big. Which means lighter valves that can have lighter springs and less contact stress on the cam, that kind of thing. With a smaller bore, you can have a smaller combustion chamber which can help produce the "high speed" combustion Koji mentioned. When they say "high speed" what they mean is that the burn is complete sooner after TDC. Which means that the effective expansion ratio is higher and you have more basic efficiency (think back to a LogP-V chart in your Thermo class).
The high torque output doesn't necessarily mean a high peak cylinder pressure, it just means a high BMEP. So if toyota is finding a way to make higher *average* power stroke pressure while not spiking *peak* pressure, you can have both high torque as well as reliability.
Great comment, thanks
awesome info. thanks for sharing! yes, what you said concurs a lot with the paper.
Good explanation! Should be pinned. You explained everything I was thinking far more articulately than I could have ever.
Under-square engines have a larger rotating mass, increasing torque through the gyroscope effect
This is a big part of the “answer”. Efficient combustion leads to high MEAN effective pressure which is basically torque, for a given bore and stroke. The high BMEP at lower rpm combined with a longer stroke results in peak torque at lower rpm, which means dynamic stresses and wear due to higher average rpm, are lower. Modern materials and lubricants, and cooling systems, are much better too, so the mechanical parts of the engine can have good strength and durability even with high mean and peak pressures. Also, modern multi-speed transmissions allow engines to operate at lower rpm more of the time, again reducing wear. It is certainly complex but I do trust Toyota, even though I’m a Tacoma 2GR 3.5 V6 owner 😀
This is the kind of content I crave. Please keep it up, and dont lose yourself as you continue to get bigger!
Some of the best technical automotive content on the internet right now. Keep it up. I hope you get the recognition you deserve.
The reason why I like your videos is how simple you keep it for the average viewer to understand and deep you go into topics! Very informative! Keep it up!
Well done man, and shout out to Toshi. I praised his work in that vid you put up a month or so ago. Didn't realize what places I've seen him before. His background and credibility align with his astute execution in this job role.
This was my introduction to your channel. Def got a sub and a like and a lifetime watcher man. Fantastic work without any apologies or excuses made for the subjects of the video and you made the videos about something, not all about you, which is the trap of most creators these days. Kudos!
I love how you have an actual engineer who knows his stuff and being able to answer your questions. Most people just think because they work on cars that they know why an engine is designed that way.
I have 8 years experience as a tech and 3 years experience as a mechanical engineer. I have nowhere near the knowledge this guy has.
From what I have learned at Tundra forums, the failure seems to be from how they wash the crankshaft after being machined.
Previous crankshafts would go through two wash cycles and all metal shavings would be washed off, the new crankshafts for the 3.4 v6 seem to have still some metal shavings left behind inside the oil feed holes causing oil starvation for the connecting rod bearings and causing early failure. It seems they have increased the wash cycles to 3 or 4, it reduced the number of failures on the 2024 tundras but there still seems to be a few.
I'm making an assumption here, but I guess the oil feed holes are narrower nowadays with the newer engines because of the thinner oil, to maintain oil pressure. Because of these narrower holes, a lot of the metal shaving from machining get stuck and don't come out as easily, leading to the current situation with the 3.4 v6.
To be honest that sounds a little fishy. If the issue was fewer washed, you would think more washes would fix it completely. Also, cleaning debris after machining is something that has existed since the advent of machining so it seems a little unlikely that this would have been an unforeseen problem for them. My speculation is the change in bearing material and obviously the entirely new platform is just going to have a few bugs to work out. Fortunately Toyota stand by their product and you can spin bearings from now until the end of time and they’ll probably just keep warranting them.
This would make sense and explain why the failure is so inconsistent and happens so early. If the engine is overstressed or whatever you wouldn’t expect failures to happen till at least 60k miles, and very consistently, like with BMW V8’s
As we've come to expect, another fanatic video. Thank you so much for asking technical questions and politely probing for answers. Keep up the great work!
This is great, I'm glad you had a chance to have a conversation with such a key person
Tinkers content is very impressive. I don’t know how you make the technical stuff so entertaining but you just do! Keep it up brother 🤝
I think the reason they called it the GX550 instead of the GX340 or 350 was because people would associate the smaller number with less. People would think well its a smaller engine and it has less power, even if it has more power. Its the same reason why Mercedes still calls the C63 the C63 instead of the C40. It used to have a 6.2 that they marketed as a 6.3 to pay tribute to the old 600 from the 60s and 70s. Off topic but the point is that it had a "6.3" so they called it the C63. Then they replaced it with the 4.0 twin turbo and still called it the C63. If they had called it the C40 people would have thought it was less than the car that it replaced. Most people don't know anything about engines so they think if its smaller it must be worse. So they give it bigger number to help with sales.
💯 The "550" is pure marketing and the poor engineer was forced to rationalize it.
BMW has been doing this for years. Once they started throwing turbos in everything, the number was repurposed to represent equivalent NA displacement performance. Yes, it’s dumb.
Absolutely drove me mad when Mercedes and others started to do the same, and don't get me started on Cadillac using some rounded approximation of what they think the kW or nm output of the engine in a given vehicle is....
One hundred percent. G35/350Z meant 3.5L, G37/370Z meant 3.7L, and then we went Q50, Q60, and Z because they went to a 3.0L.
yea, sadly we are surrounded by uncritical muppets and marketing teams feel like the need to appease them
40 years as an automotive/diesel tech.
To quote my favorite engineer "The more complicated the plumbing, the easier it is to stop up the drain."
The only reason everyone is running a turbo these days is to try and eek out a few more mpg to get past fuel economy standards and to fool the customer into thinking they arent looking anything.
Honestly, 95% of car buyers are ignorant and just hear turbo and in the head turbo=fast.
The only reason they are running turbo cars is because NA engine development peaked. They cannot get any more power out of those engines without increasing in size, or revving them higher, like Ferrari and their 6 ltr V12 since the Enzo has been making the same BHP per liter to this day up to the 6.5 V12 812 SF. Lamborghini with their 6.5 is making the same power as the Ferrari. So they needed an option out because it would be outrageous to start putting 7 liter engines in production cars, I understand there is a couple with above 6.5 liters but the larger the displacement the lazier the engine, and the more inefficient it becomes.
@@lexuslfa4739very interesting
@@lexuslfa4739For non sports cars it’s mostly for mpg to meet EPA regulations. Even then the new tundra for example barely gets better mpg than the 5.7 in real world usage. If they just tweaked the 5.7 and mated it to a 8 or 10spd trans it’d likely get the same mpg.
95% of car buyers have no idea what a turbo is..
Most car buyers be like, “pretty car, high mpg, me buy!”
Just discovered this channel. As a scientist and professor with 6 degrees, I can’t tell you how thrilled I am to find a channel dedicated to taking such a deep, meticulous and well-researched dive into cars well beyond the generic, press release talking points most channels focus on. Well done, sir. 👏👏👏 Looking forward to exploring the rest of your video library!
Nothing beats a NA V8! I don't care what ANYBODY says! Toyota should have just kept their V8!
Don’t talk to Toyota. Talk to Biden and US CAFE standards
@@hugoglenn9741 What does Toyota have to do with the govt? This is a Toyota issue
@@RevolutionRoadGovernment mandated emissions and MPG standards. The V8 probably would not have made the cut
@@bunzaroo Nonsense! Other manufacturers are still making V8's. "Govt mandates" are not law! Those particular mandates were given only to those manufacturers that were given "incentives" aka bribe money.
And if you think a turbo charged engine is going to improve emissions and mpg standards, you're fooling yourself!
@@RevolutionRoadExactly mate
You really do your research. Then going above and beyond by showing your work. Subbed.
This is the best automotive channel on RUclips.
I'd like to see something like HP per square inch of bearing surface. I'd trust that for longevity.
Agree
😂😂😂
This is the kind of technical insight I strive so hard to find, Im so glad I clicked this video! Keep them coming, Ill binge the channel soon enough
It’s always nice when the algorithm delivers a perfect recommendations. Thanks for making this!
Larry Chen and Hagerty are giving us the shiny stuff we love, and you’re giving us the meat and potatoes we need 🤙🏼 Keep up the good work! (Great to hear from Chris too 👍🏼)
The question I would ask is if government didn't force the reduction in displacement, would Toyota select the V6? I don't see any other factors in the decision to reduce displacement and go electric.
Great video! I’m always amazed at how detailed your videos are, please continue the same way!
There’re many many engines with the same problem from land cruisers in the middle east, some are even shown here in RUclips and I heard of many, so they are 100% confirmed
You’ll definitely see more of these the next couple of years when GX buyers get up there in mileage
Incredible stuff man... really appreciate the effort to bring such a video to RUclips... thanks 🙏
Dude. This video was PHENOMENAL. Thank you for your hard work and for your deep dive on these topics!
Absolutely awesome video, thank you for the time, energy and effort to put this together.
Love seeing videos from someone who puts the time in. Thanks again for your hard work!
Great content Tink… thank God we have someone “going there” with the technical details that many of us want to understand and don’t have the time to sort through. You’re distilling this all down to what we really need to see and understand in order to appreciate what Toyota is accomplishing with these new power plants.
Man I love when I get to learn the nitty gritty specifics of truck off road performance. 😊
Great content here. This is a pearl in the ocean of surface level reviews.
I’ve only seen two of your videos, love them both. You are amazing, love the details, academic approach, and great questions. Keep it up.
Great technical presentation with real world application result.
I cannot wait for the Rod Bearing update. Thank YOU!
Toyota has been having so many reliability issues for the past few years, now they're just like other car manufacturers.
But their prices are still including the cost of the good reliability which doesn't actually exist anymore.
I work in this industry. Yes some of the engines are failing, particularly the no. 1 crank bearing but also sometimes the connecting rod bearing instead of the crank bearing. Seeing as this engine came out in 2018 it’s surprising to have so many failures for a brand known for reliability.
still failing in 23 and reports of low mileage 24 models not just 22
gx460 still the goat, then?
GM, Ford and Honda are all facing the same problems, speculated to be improperly cleaned blocks after sand casting, but I don't have enough actual evidence to say anything concrete about the causes.
Online forums probably makes this issue seem more prevalent than it really is. Dealership near me hasn't had any come in for this.
@@stevieray1828 Stop in at any Toyota store and see how many tundras are on the lot waiting for motors, wouldn’t roll the dice on the first couple years of production on this motor either.
Currently shopping for a new, current generation 4runner before they switch to the turbo 4 on the 2025 for the same reasons
This is an excellent, excellent video and reporting. You have a bright future in Toyota enthusiast viewer content! Clear, technical but not boring, informative and most of all objective!
While some of your discussion may go over my head technically, I truly appreciate your research, explanation and how you present your findings. Very thorough, and it helps me to be a smarter consumer. Thank you! Subbed!
Amazing video as always
Awesome video and content! Very nicely explained. Keep it up. Looking forward to the follow up video on this.
It’s always a great day when one of your videos drops. Thanks for always posting great content that we can enjoy.
I believe those engineers dodged your question about the new engine stress by claiming it is ok because the new engine makes power more efficiently. Power is power whether it is done getting 1mpg or 20mpg, it doesn’t matter. It is still the same amount of force traveling through each connecting rod to the crankshaft and ultimately to the main bearings. And when you pit those extreme forces against ultra-thin 0w-20 oil, it’s no wonder we are seeing main bearings perish.
Another great video from the Tinkerer! I saw it, and I had to watch it immediately.
Its a good video. I will reserve judgment and see if toyota is able to iron out issues in these new powertrains in the coming years and see if they really are reliable.
A lot of people dont understand how far we've come in manufacturing technology such as metallurgy, tolerances, etc. Turbos aren't the boogeyman anymore. The only limiting factor at this point is people.
Ill be waiting to hear from high mileage new gen toyota owners
@@PonyFoot123 As long as you listen to the ones who change their oil. There are going to be a lot of people disappointed in their engine's longevity if they're changing oil at 10k miles.
@@DeuceDeuceBravo for sure!!!
I was a 4g63 fan for years. I have daily driven 400whp cars/vans (eagle summit awd)with 16/18g turbo 4gs with over 240k miles. Turbo engines don’t automatically mean less reliable
@@PonyFoot123 You will, especially 4 cylinder Tacoma owners. They wont make it to 400K like the 1990's 4 cylinder Tacoma's did. Not even close.
This video is fantastic. You’re addressing topics every Toyota guy is arguing about daily. Thanks for making it, Savage Geese also addresses technical designs, and I’d like to see your channel get there, you have a similar format-, keep making great content, we all appreciate it. Every Gen 3 Tundra owner is wondering if their truck will be reliable. I’m sure Lexus Gx owners are wondering the same, if they are enthusiasts. My wife’s older GX460 with the V8 was incredible, we all hope this new engine can live up to even 70% of the older V8’s reliability….
I live for these videos. The only RUclipsr i watch content for from beginning to end every single time. Love the content .
From a PE, if you ever get tired of RUclips, you have a future in engineering. (lol, just looked in your store and noted you're a mech engr)
In Saudi Arabia the new landcruisers with the same engines are suffering serious issues including blownup engines....may be this engine configuration is working in other countries but in the GCC it is not working at all...
Phenomenal work Kai, thank you for your contributions!
Thank you for all the effort you put into your videos it definitely shows
The dealership I work at has had 2 tundras with main bearing issues below 15k. They were early model tundras. The wear was allegedly due to improper cleaning from the machine process
There were 4 LX600 with the same issue in one of my local Lexus dealers as well. Sad to see these motors having so many teething issues 7yrs into its life cycle.
"I'm a bit of a Scientist myself." Love your channel and how you cover the topics in depth. Keep it up!
I felt the presence of a new informational video and vualá you posted one.
There is no way, I will give up my naturally aspirated 1GRFE V6 engine. These are absolutely bulletproof and such a forgiving engines.
we want a 1grfe paired with a 10 or even 8 speed trans.....but never gonna happen..
@@FranciscoHugoGarciaur better off keeping the 5-6 speed transmissions, I’ve heard those 8-10 speed tends to hunt for gears a lot
@@BigAltimaEnergy719this is actually an engineering work around for drowsy or distracted drivers. That's why cruise control will not hold a single gear for the posted limit
@@FranciscoHugoGarciathe Lc300 comes with a 4.0 variant that carries the 4.0 1gr fe with the 10 speed transmission (2022- present Lc300) look it up
I love 1GR it's the best for me too
These new toyota engines all run very thin oil for fuel efficieny and emissions reasons. This thin oil requires tighter bearing clearances. Tight bearing clearance in a high torque/L engine doesn't leave much room for error.
The theory that oil passages have changed due to oil viscosity has been disproven.
Thanks for the video. Very enjoyable discussion. Probably will start paying more attention to the technical seminars where this papers are discussed and questioned by experts in detail.
As always my dude. Facts over feelings. long time ago I stopped following the ones excited about big screens in the dash kinda RUclipsrs. Keep up the good work Kai.
Twin turbo V6, less cylinders but more power and more complicated, it must be less reliable than simple non-turbo V8, no exception man, combustion efficiency is not affecting to mechanical durability, all moving parts are getting more stressed.....
Sometimes it is just that simple. Of course they’re going to try to sell us on their newer stuff.
Agree. Looks like a lubrication failure.
Always a solid video. These motors are a huge concern of mine.
Why?
This was an incredible video. Fantastic research and explanation. I would love to see more interviews with the engineers on vehicles like this!
I am not a car guy, just a curious owner of an LX600. I finished the entire video, and it won my subscription. Keep up the great work.
Great interview. My logic is: fewer parts in existence = fewer parts that can break. I'm sure that the entire package is very well engineered, however I have lost a lot of faith in Toyota build quality after purchasing my 3rd gen Tacoma and suffering through early part failures such a warped thermostat housing which was plastic. Critical parts which are exposed to high heat should not be victim to bean counter cost savings and made from inferior materials.
Could not agree more. It’s a simple fact that complexity has a direct relationship with failure potential. Now this might not seem like a concern on a new car, but once they acquire age, wear, stress, perhaps a fender bender or two… They’re already unaffordable to repair for some moderate operations, I cannot foresee a meaningful number of 2025 cars being on the road in 2050. We need to apply our knowledge like a scalpel, not a sledgehammer, and stick to simplicity unless used to improve efficiency.
Still wish they made a new v8 for us
love the detailed videos. Keep up the stellar work man!
this is some high quality content. I really enjoyed watching the entire video.
I thought that was toshi. That guy is awesome!
Would like to hear your thoughts on the T24A-FTS.
Amazing content man! Thank you so much for putting this work in to educate us!
As usual, another great video with content you will not find anywhere else!
Thank you California and EPA.
the meme of " something like a scientist myself" had me laughing hard for way too long
You addressed the topics which have always interested me, thanks !
Wow this is incredible. Great work man, and thank you.
There actually IS an official explanation for bearing failures. Improper cleaning of blocks post machining and pre assembly causes blocked oil passages and premature crank bearing failures. This is well known in the Toyota community so I’m not sure why a Lexus technician would not be aware of it. This is not a design issue, it’s a manufacturing/assembly fault. It’s disappointing there have been this many failures but Toyota is usually pretty proactive in solving issues.
‘The car care nut” does a great in depth video on the design of the cooling system in these engines. Pumping this much HP and torque out of these engines, heat would be a major factor that potentially could reduce longevity and reliability but Toyota designed a very competent cooling system in these engines. I’m confident these engines will ultimately earn a good reputation but they’ve certainly had some issues. I have a ‘22 Tundra and so far no issues at 23K miles. Knock on wood.
Link to official explanation?
@@spaulagainDiscussed at length with dealer service manager. As well, in a 3rd gen Tundra owners group on Facebook, every engine failure I’ve seen posted has been diagnosed as this exact issue. There are many Toyota technicians and at least 1 Toyota engineer in the group.
I recently traded my 3rd Gen Tacoma for a Jeep Gladiator. I still do really love Toyotas, and still have an older Land Cruiser. I wish Toyota would give more of what the American Off-Road community wants. Jeep, Ford, and Chevy are really stepping up their games on mid-sized off-road trucks. I wish you could get the Land Cruisers here that the Aussies have, all this luxury stuff isn't as interesting. The GX550 is very nice, don't get me wrong...
Yeah, it would be nice if Toyota truly tried to compete with the real off-roaders. I have a 4Runner, and I love it as a DD, but if I lived in Utah or some place with a lot of technical trails no way would I be driving a 4Runner. 100% would be in a Jeep.
@trailrunnah8886 I have family that lives near Moab, and I used to have a 2017 4 Runner with an ARB air locker and 33-inch tires. I could do a lot in Moab with the 4 Runner. It was great. But yeah, the 4 Runner is kind of at its design limits with 33s and Hells Revenge was kind of as far as I was comfortable doing with my Toyota.
@@adrianw3985 is that a front locker you have? Mine has the factory rear locker. I've never had to use it, which tells me I haven't pushed it as far as it will go LOL. Don't get me wrong, I'm not trying to crap on the 4Runner, it's just what I saw in Moab when I was there, and all the videos I watch, I would definitely be more comfortable in a vehicle like a Jeep, for the increased front articulation, as well as less body work to keep track of.
@trailrunnah8886 I had an SR5, so I added a rear locker, a 2.5 lift, a winch, and 33s. There is a lot you can do in Moab with a 4Runner. I would say trails rated 5 to 6 with minimal scraping. Even with a Jeep, you may get some scrapes on some of the tougher trails. It's just part of the game. You should try Fins and Things and Hells Revenge. Hells Revenge has some optional parts that would be tough even in a Jeep, so you can drive around those parts.
You're always answering questions I didn't know I had. I learn a lot here! This channel is the reason I bought a 22 4runner trd pro with KDSS. I'm not sure yet if I want a new one, but I'm hopeful the reputation holds with this new engine. I want to buy a new Toyota in a few years. I'll probably have a go with the sequoia.
1., Your videos are fantastic. It's hard to find interesting, concise, detailed dives into stuff like this, and you could say this kind of content is top dead center of my, and my group of friend's interests. Thank you so much for making these. 2., Toyota/Lexus: If you're reading this, there is a massive community of nerds like me and many are in the position to buy your products. I'm more likely to buy a Lexus after watching this than I was before. Thank you for giving us your time with this interview, and I'm positive that continuing to provide access to fascinating experts like you did for this video will be good for Lexus, good for Tinkerer's Adventure, and good for us, the viewers.
Very interesting and thorough video, again, Kai! My assumption was that Toyota motors were so durable because they were understressed, stemming from low HP/L and mediocre gas efficiency. I didn't think that a more efficient engine would run cooler and therefore see less thermal stress.
The new 300 series will never match the life span of a 80 series
You make the absolute BEST car content out their!
Thank you, finally someone asking the right questions 👍🏼
Ford has shown for over a decade that these kinds of turbocharged V6s can be reliable long term. There are numerous examples of Ford 2.7L and 3.5L ecoboost engines with 300K to 600k miles and no issues. There's even one with over 1.3 million miles, though that one is on its second engine. You can even get a 3.5L in the F150 with 450 hp and 510 ftlbs of torque! Though Toyota's 3.4L TTV6 might be one of the least reliable V6s out there currently, these are likely just growing pains and updates to the motor will likely improve reliability.
The caveat to the longevity of the motors you mentioned is absolutely religious maintenance and easy use. The Eco-boost makes fun power and gets decent mpg, but they fail a lot when used hard. By used hard, I am referring to trucks that do weekend towing. This isn't my opinion, this is what 3 family Ford techs have told me. In their words, "If you want a gas car or truck to last 300k miles, DO NOT buy anything turbo charged. If you need to tow on occasion, buy any sized NA motor that meets your weight requirements and live with a little less power and lower mpg".
The 3UR-FE is kinda mid-tier in Toyota terms, but it is still outperforms all the Ecoboost engines in uptime and long term running costs. (Even at 15mpg.)
3UR-FE is mid-tier in Toyota terms? I mean, I know it’s not S+ tier, but it’s still A-tier. Especially the Japanese-built ones employed in the Land Cruiser / LX 570
@@matthewpeterson3329there have been many turbocharged cars I have worked on that have 500,000 kms and I have had friends who had turbocharged cars with 400,000 kms on them and they were German cars which are known for their reliability issues. Maintenance is key as many point out. And recently I did work on a 2014 Subaru forester with the WRX turbo engine. The owner did say he has been driving around with a blown turbo for the past year or so, but it was still going strong and could still do highway speeds.
Ford and reliable in the same sentence....
LMAO!
Thanks for the laughs.
Ford turbo engines are some of the worst junk on the planet.
So they got 1 or 2 engines to go the distance, out of thousands that have failed.
Even a blind squirrel finds a nut once in awhile.
The only ford engines with over 300k miles are diesels with multiple expensive fuel system repairs, and NA's that people put 2-3 engines in or hired a team a illegals to push them around town by hand.
My fear with this issue is that it is just like the Tacoma and 4Runner front differential needle bearing issue. Toyota has yet to fix this issue. The only real solution in the aftermarket bushing. To me, it is a real failure on Toyota to not address and properly fix this issue. From your video, it seems this main bearing issue has documented history for several years also.
Ugh, you just reminded me that I need to do mine... 😂
I believe the fix is a dampener to help the noise not reach the cab. Toyota has said that they noise is normal and won't replace the front differential anymore. As for the main bearing issue I have a feeling its the dual pulley system with the belt and the crank pulley itself is causing the issue.
Amazing research, great explanation. Subscribed!
First of all I want to say great job on the video I found it very informative and entertaining as with all your videos.
I feel like they dodged your question in the interview though. While thermal efficiency will absolutely affect heat build up and fuel consumption I don't feel that it is a good reflection of other stresses put on the mechanical components of an engine. We are still making substantially more power with a much smaller engine.
That being said I'm also not convinced that the smaller size is contributing to the front main bearing failure, in my experience main bearing failures are most commonly oil related.
Thanks for the great content, looking forward to your next video.
If Ford managed to build a 3.5 Liter twin turbo V6 that puts out good power, and reasonable reliability, than I _KNOW_ Toyota can. Honestly, as an independent tech, I see more Toyota vehicles with 300,000 plus miles than anything else, except exceptionally well taken care of Suburban / Yukon SUV's .
This just the older early 2000’s Yukons and Suburbans or anything with afm/dfm?
My Volvo has a million miles
@@ThunderRunner 2007 was the first year.
@@mcglovera Once you get up to the P2 cars, there are enough electronics to cause serious issues, transmissions are kind of weak, the 240 / 740 series were bullet proof. My experience.
@@mcglovera right - do you see any 2007 or newer suburbans and Yukons with that kind of mileage?
So basically buy GX460
Great content! I've had 4 GX460s from model years of 2015, 2018, 2021, and 2023. It's fair to say that I've not driven enough of one vehicle long enough to come across any major problems. However, I've virtually driven "ONE" type of engine for about 8 years. If I waited until this month (05/24) I could have gotten the new GX550. One thing that kept me from NOT getting it was the new engine. I am not an engineer or have inclination of an engineer at all, but the "NEW" V6 wasn't something I wanted to try. Glad I held off and hopefully, with the improved V6 in the future, I'd love to try it. One last thing, the NA V8 on the GX460 is a tank and a beast.
Another excellent video, would love to see more interviews like this.