Failed Engine in 24 Tundra

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Shawdaddy
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11:05a, 5/1/26
AG
UPDATE: I got my truck back a couple of weeks ago after they replaced most of the engine components. The truck was running rough, but I was on my way out of town for vacation, so I waited to deal with it til I got back.

The idle is rough. When it is parked the whole truck shakes, and you can feel it while you are driving, especially at lower speeds. I took it in to Toyota last Friday, and they said it showed no codes and everything was fine. I asked the service advisor to come look at it before I left, and he agreed it wasn't right, so he "opened a case" with Toyota. There were no managers of any sort working last Friday.

Got a call this morning and again - no codes and everything is good. I reminded him of how it was running and he said, yes, they know it is running rough but that it was "in tolerance."

I have an appointment this afternoon for the management team to try and gaslight me into thinking that the truck is fine when its not. We'll see how that goes.

They have also expanded the recall (which they wouldn't completely do when they replaced most of the engine last time) and said that they will be replacing the entire engine in this truck when Toyota allocates one to it. Third engine in 37k miles is wild.

Icing on the cake - Once that recall came out I have been getting sales calls wanting to get me into a '26 to avoid having to deal with the recall, lol. Buying a new Tundra is definitely not in the cards.

And for all who say, yeah, but Toyota fixes their mistakes over time - I had a '22 tundra that had terrible break squeal, after a few times through the shop, Toyota acknowledged it was a recurring problem with the new Tundras and fixed it. Got the '24 and had to have the same problem fixed (1st tie since they knew exactly what was wrong - just had to wait a week for parts). Now driving a '26 as a loaner. Care to guess if the problem is still there in the new trucks multiple model years later?!

TLDR - Toyota has lost its way. Do NOT buy a new Tundra.



Someone asked about Toyota reliability, specifically switching from Ford in another thread, so I thought I would share this.

If I could go back to Ford I would. Drove my last F150 for a decade before someone hit it, with relatively little trouble.

I bought a 2024 Toyota Tundra platinum, partly due to the toyota dependability. It is currently in the shop having the entire engine replaced after leaving me stranded on the side of the road on the way home from Dallas last weekend with my boy.

Total engine replacement at 35k miles and 2 years old, smh. And they cant even tell me what caused it yet. Luckily the only people who have ever opened the hood on this thing is the dealer I bought it from, and they serviced it 2 weeks ago.

I know all manufacturers have thier problems, but I'd be leery of going Toyota if you are doing it because of the reliability.
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Ag for Life
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In reply to Shawdaddy • 11:10a, 5/1/26
AG
Sorry to hear that. It's a damn shame because the Tundra 5.7/6 speed combo from 2007-2021 was one of the most bulletproof powertrains of all time.

Unfortunately this appears to be a main bearing design flaw as the "machining debris" would have been rectified by now from their original recall on the 2022-2023 Tundras.

Toyota should reincarnate the 5.7
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MouthBQ98
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12:01p, 5/1/26
AG
It's really hard to find a completely reliable drivetrain right now. I think the regulations snd market conditions have pushed engineers and product planners to really test tolerances on weight reduction, production cost minimization, and to prioritize fuel economy in design over durability and safety margin. I've noticed a lot of problems that appear to be bearings that could be affected by material use, quality, and tight tolerances, and designs pushing limits on vibration and mass minimization, and probably newer design and production methods that get physically tested less and operate more in the virtual environment. Parts fail for unanticipated reasons that are difficult to discern and tease out of the data and physical evidence, and fixes are very costly to implement.

And now, whether they fix it or paper it over depends entirely on a cost calculation of warranty issues and reputation hit versus recall costs and production line changes.
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MouthBQ98
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12:03p, 5/1/26
AG
I also think the way people drive now is really hard on engine designs. Lots of short "cold" trips. That's horrible for longevity. Especially with light weight oils and turbos involved.
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BlueSmoke
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12:40p, 5/1/26
Too much tech. Too many moving parts. Too complicated with stuff that can easily break.

Favorite truck I ever had was an '88 Ford extended cab with that bulletproof, inline-6. Dual gas tanks. Vinyl seats. Manual transmission. Zero issues for decades with that old girl. Man, a truck like that would be easy to make, have minimal maintenance, and sell like hotcakes.

And they'll never make it.....
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AgGrad99
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12:50p, 5/1/26
AG
MouthBQ98 is exactly right.

On the first page of this forum, there is another driver replacing their Ford F150 transmission.

They all have issues right now.

It's anecdotal, but I actually hear a lot less serious issues happening with RAM these days, than the other three.
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10andBOUNCE
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In reply to Ag for Life • 1:09p, 5/1/26
AG
Ag for Life said:
Sorry to hear that. It's a damn shame because the Tundra 5.7/6 speed combo from 2007-2021 was one of the most bulletproof powertrains of all time.

Unfortunately this appears to be a main bearing design flaw as the "machining debris" would have been rectified by now from their original recall on the 2022-2023 Tundras.

Toyota should reincarnate the 5.7

Seems to me the best thing one could do is find a used 2021 Tundra and it will stay on the road for as long as you want it to.
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BlueSmoke
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In reply to 10andBOUNCE • 1:36p, 5/1/26
10andBOUNCE said:
Ag for Life said:
Sorry to hear that. It's a damn shame because the Tundra 5.7/6 speed combo from 2007-2021 was one of the most bulletproof powertrains of all time.

Unfortunately this appears to be a main bearing design flaw as the "machining debris" would have been rectified by now from their original recall on the 2022-2023 Tundras.

Toyota should reincarnate the 5.7

Seems to me the best thing one could do is find a used 2021 Tundra and it will stay on the road for as long as you want it to.

2019 Tundra driver here. So this is weird. Gas tank was getting low; check engine light came on. Filled it up. It went away.

That's all I got guys.....It's a burden I must bear....

I did have the EVAP system replaced last year, so maybe it's that?
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aTm2004
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1:40p, 5/1/26
AG
My BIL traded in my SIL's 2019 Highlander a couple of months ago because of a lot of small issues just started adding up, and the final straw was oil leak with a $3500 quote to fix. Vehicle had <65k on it.

My neighbor across the street just got their 2024 Grand Highlander back out of the shop because of transmission issues.
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Tree Hugger
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1:51p, 5/1/26
AG
My son's 2021 Kia Soul had a partial rebuild (cam, sensors, etc.) at 23k and then a full engine replacement 10 months later at 28k last year, all under warranty) No idea really why other than it tripped a lot of the symptoms from one of their recalls.

The part that really sucked was the second time it died on him was when he was moving from Oregon back to Texas and it died just outside of Abilene. He had it towed to the local Kia dealer and they ended up doing the engine replacement. It was just a pain having to go pick him up in Abilene and then go back a month later to pick up the car.

It's been fine since October, but I still wonder if he should look into something different since he is driving more since we moved back to TX. I'm sure it would get dinged on the Carfax, but it is a 5 year old base model car so the resale wouldn't be great anyway.
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spieg12
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In reply to BlueSmoke • 2:01p, 5/1/26
AG
BlueSmoke said:
Too much tech. Too many moving parts. Too complicated with stuff that can easily break.


I dont like this argument because most people don't remember things accurately when it comes older tech or machines.

Too much tech is subjective. It's not inherently good or bad. It's people who are good or bad with technology and the people who are bad with it aren't willing to learn.

Too many moving parts is objectivley false. Moden vehicles have fewer moving parts than old ones because everything is electronic now. Think of how many moving parts were involved with just a carburetor.

Too complicated with stuff that can easily break is two different things. Too complicated is again subjective. Stuff that can easily break I will somewhat agree with you on. Lots of stuff made out of plastic or aluminum these days to try to meet MPG requirements.

I have owned two vehicles, a 2012 chevy half ton and a 2022 half ton. The 2012 I only ever replaced tires, batteries, and spark plugs in 130,000 miles. The 2022 has had nothing done yet but oil changes but it only has 19,000 miles so we will see.

I have heard from folks older than me that vehicles from the 70's and 80's were constantly needing various things worked on, minor or major. It has been my experience that newer vehicles have been very reliable. Even the much liked GMT400's that I learned drive on had problems. They didn't call the transmission in those 4LslipE for nothing.
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BlueSmoke
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In reply to spieg12 • 2:21p, 5/1/26
spieg12 said:
BlueSmoke said:
Too much tech. Too many moving parts. Too complicated with stuff that can easily break.


I dont like this argument because most people don't remember things accurately when it comes older tech or machines.

Too much tech is subjective. It's not inherently good or bad. It's people who are good or bad with technology and the people who are bad with it aren't willing to learn.

Too many moving parts is objectivley false. Moden vehicles have fewer moving parts than old ones because everything is electronic now. Think of how many moving parts were involved with just a carburetor.

Too complicated with stuff that can easily break is two different things. Too complicated is again subjective. Stuff that can easily break I will somewhat agree with you on. Lots of stuff made out of plastic or aluminum these days to try to meet MPG requirements.

I have owned two vehicles, a 2012 chevy half ton and a 2022 half ton. The 2012 I only ever replaced tires, batteries, and spark plugs in 130,000 miles. The 2022 has had nothing done yet but oil changes but it only has 19,000 miles so we will see.

I have heard from folks older than me that vehicles from the 70's and 80's were constantly needing various things worked on, minor or major. It has been my experience that newer vehicles have been very reliable. Even the much liked GMT400's that I learned drive on had problems. They didn't call the transmission in those 4LslipE for nothing.

Agree it's a subjective conversation. I would posit that for the most part, a naturally aspirated engine would be more reliable than one with a twin-turbo. Talking truck engines.

Few parts. Lower operating pressures/temps. Less stress on parts.

The reason Toyota has this reputation for reliability is because they are generally conservative in their builds, and instead of making wholesale changes every few years, they make hundreds and hundreds of smaller changes to an existing platform. That gives me hope for the new truck lines. They also overbuild key aspects. Like the older Tundra drivetrain.
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aggiej2007
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In reply to Shawdaddy • 2:54p, 5/1/26
AG
You should've received a recall notice from Toyota on this. It was for the 2022-2023 and extended to 2024 Tundras due to machining debris left in the engine. My FIL has a 2023 Platinum and they sent him the recall to replace the entire engine. Truck was running perfect and I thought it was crazy to replace the engine. He had it done anyway at 33K. No issues so far.

I would be beyond pissed if this happened but in my experience, this is rare for Toyota. And if it does happen, Toyota steps up and takes care of it unlike GM who comes up with every excuse known to man to avoid admitting they have multiple f'd up designs across their models. Anyway, my FIL had the convenience of scheduling the replacement and they provided a rental for the entire time(another Tundra!) Much more pleasant experience for sure, so sorry this happened to your truck.

I would still consider Toyota to be one of, if not the most reliable out there. I don't have anything new from them but my 2015 Highlander at 164k, My 1999 Taco at 224K and my 2001 Sequoia at 204K have zero issues unlike most new vehicles from other manufacturers. Or at least anyone I know with a newer vehicle.
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Shawdaddy
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In reply to aggiej2007 • 2:59p, 5/1/26
AG
They have been treating me well. Taking care of everything and put me in a Tundra as a loaner - no complaints there.
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tk for tu juan
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3:18p, 5/1/26
Are the parts/labor cost still around $30,000 for the engine replacement, or have they found a better/cheaper way to remove the engine since Toyota is paying the bill?
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BrazosDog02
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In reply to spieg12 • 3:31p, 5/1/26
AG
It kind of depends on what we care about. My 1977 F250 requires a full tune up occasionally. Timing adjustment, vacuum advance tuning, carburetor adjustment….valve lash maintenance.

My 2002 5.4L 2V requires none of this. Timing is automatically adjusted, valves have hydraulic lash adjusters, and the computer makes fuel trim adjustments on its own. At 455,000 miles, I just rebuilt the transmission in it, not replaced….rebuilt. And last week I spent two weeks replacing my timing set, lash adjuster and cam followers. It runs like a champ. I'll never get rid of either of those trucks.

But, compared to modern engines, these two are pigs. Even the 3V 5.4 has a fair bit more power. But that comes at a service price with cam phasers and other junk. But it also gets 14mpg where my 2v gets 12 and my 5.8 gets 10-11.
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bam02
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3:34p, 5/1/26
AG
Sorry, OP. That sucks. Stupid federal standards. From what I understand Toyota did not want to go this direction but pretty much had it forced upon them.

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BlueSmoke
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4:03p, 5/1/26
Retired Principal
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4:25p, 5/1/26
AG
Love my 2014 1794 Tundra. Sounds like I hit the sweet spot in terms of engine reliability. Probably won't get another vehicle until I NEED a new vehicle.
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Shawdaddy
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In reply to tk for tu juan • 5:35p, 5/1/26
AG
No idea. Have calls out to the service department yesterday and today that have not been returned.

In my first and only conversation they said it was covered under the lifetime powertrain warranty.

Hope I don't find the answer to your question.
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2girlsdad
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4:49a, 5/2/26
I have a 2012 Tundra, love it! I have had to get the fuel pump and alternator replaced in the last 4 years, but the drive train has been solid. Goal is to keep it for at least the next 16 years (maybe I'll upgrade in retirement).

Edit: should be thumbs up
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JP76
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2:41p, 5/3/26
Unless the numbers have changed recently you have a greater chance of dying from Covid than having your tundra engine fail.

While those numbers don't seem that bad they are much higher than Toyota's historic failure numbers so that is why they stepped up with the engine recall. Now if only gm would do the same with the v 8 lifter issue and ford with ecoboost cam phaser problem

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JP76
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In reply to Shawdaddy • 2:44p, 5/3/26
Shawdaddy said:
Someone asked about Toyota reliability, specifically switching from Ford in another thread, so I thought I would share this.

If I could go back to Ford I would. Drove my last F150 for a decade before someone hit it, with relatively little trouble.

I bought a 2024 Toyota Tundra platinum, partly due to the toyota dependability. It is currently in the shop having the entire engine replaced after leaving me stranded on the side of the road on the way home from Dallas last weekend with my boy.

Total engine replacement at 35k miles and 2 years old, smh. And they cant even tell me what caused it yet. Luckily the only people who have ever opened the hood on this thing is the dealer I bought it from, and they serviced it 2 weeks ago.

I know all manufacturers have thier problems, but I'd be leery of going Toyota if you are doing it because of the reliability.



Just curious what oil intervals you were changing at and what brand filter and oil you have been running ?

Also was the driving mostly in town or highway ?
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JP76
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In reply to tk for tu juan • 2:49p, 5/3/26
In the beginning they were replacing the short block but i was told by a manager they now replace the entire long block as well as the turbos on the recall. I was told this also shortened the turn around time from 4 weeks to about 1 week on replacing it
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oldarmyag95
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3:38p, 5/3/26
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fixer
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In reply to Shawdaddy • 5:00a, 5/4/26
Shawdaddy said:
Someone asked about Toyota reliability, specifically switching from Ford in another thread, so I thought I would share this.

If I could go back to Ford I would. Drove my last F150 for a decade before someone hit it, with relatively little trouble.

I bought a 2024 Toyota Tundra platinum, partly due to the toyota dependability. It is currently in the shop having the entire engine replaced after leaving me stranded on the side of the road on the way home from Dallas last weekend with my boy.

Total engine replacement at 35k miles and 2 years old, smh. And they cant even tell me what caused it yet. Luckily the only people who have ever opened the hood on this thing is the dealer I bought it from, and they serviced it 2 weeks ago.

I know all manufacturers have thier problems, but I'd be leery of going Toyota if you are doing it because of the reliability.

This issue prevalent beyond the Tundra as well. The Sequoia, Lexus LX 600, and GX 550,

Although there is still shockingly a metallic debris issue occuring, the damage on the #1 main bearing suggests (to me at least) there is a possibility the main cap is "walking" or deflecting.
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akaggie05
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6:41a, 5/4/26
AG
What's the oil spec on the Toyota engines? I'm leery of all of these new vehicles that spec 0w-20 or lighter. It appears to be driven by fuel economy. Look at the specs for the same engines in other markets (similarly hot ones like the Middle East) and you'll often find a much heavier grade used.
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Shawdaddy
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In reply to JP76 • 8:51a, 5/4/26
AG
JP76 said:
Shawdaddy said:
Someone asked about Toyota reliability, specifically switching from Ford in another thread, so I thought I would share this.

If I could go back to Ford I would. Drove my last F150 for a decade before someone hit it, with relatively little trouble.

I bought a 2024 Toyota Tundra platinum, partly due to the toyota dependability. It is currently in the shop having the entire engine replaced after leaving me stranded on the side of the road on the way home from Dallas last weekend with my boy.

Total engine replacement at 35k miles and 2 years old, smh. And they cant even tell me what caused it yet. Luckily the only people who have ever opened the hood on this thing is the dealer I bought it from, and they serviced it 2 weeks ago.

I know all manufacturers have thier problems, but I'd be leery of going Toyota if you are doing it because of the reliability.



Just curious what oil intervals you were changing at and what brand filter and oil you have been running ?

Also was the driving mostly in town or highway ?

Oil change every 5k miles at the dealer. Honestly, I don't know what oil they were using - manufacturer's spec I would assume.

Good mix of highway (50 miles round trip to work daily/weekend trips) and city.
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zooguy96
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10:00a, 5/4/26
AG
I don't like that a lot of the newer vehicles are saying 0W-20 for engines here in the states, but when you look at overseas manufacturers books, its usually a heavier weight oil. I would assume due to the CAFE standards here.

I switched over from 0W-20 to 5W-30 for my Titan.
I know a lot about a little, and a little about a lot.
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Dr. Doctor
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10:03a, 5/4/26
Dr. Doctor
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10:04a, 5/4/26
AG
Seems relevant here...
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P.H. Dexippus
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10:21a, 5/4/26
AG
I would think at a minimum Toyota would be recommending a much shorter OCI and offering them for free through dealers.
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austinag1997
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In reply to zooguy96 • 10:48a, 5/4/26
AG
zooguy96 said:
I don't like that a lot of the newer vehicles are saying 0W-20 for engines here in the states, but when you look at overseas manufacturers books, its usually a heavier weight oil. I would assume due to the CAFE standards here.

I switched over from 0W-20 to 5W-30 for my Titan.


I think the 0W oils may because of tighter tolerances. I had to readjust my thinking with a couple of old Porsches.
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Shawdaddy
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12:26p, 5/4/26
AG
The dealer gave me an update this morning. Toyota had them ship the engine back intact so they could break it down. They did however ask that they pull the oil pan and check for metal shavings, which were present. Will be several more weeks until the new block shows up.

Pleased with how they are handling everything overall, but its still a pain. He confirmed for me one more time that it will be covered 100% by Toyota.
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fixer
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In reply to Dr. Doctor • 1:39p, 5/4/26
Dr. Doctor said:
Seems relevant here...


Good article .

They changed processes due to the debris. Then they changed main bearing design. and now there is still debris causing the issue.

I am a die hard Toyota owner and enthusiast but I have to call balls and strikes.

Toyota had from 2008 to 2021 to work on this truck. In automotive world that is two eternities.

The result is a truck that gets middle of the pack fuel economy at best; looks less attractive than outgoing model; and has serious engine issues; and has engine manufacturing problems they don't know how to fix.

Reliability was the only reason to look at Toyota in this segment. They have lost the plot in astonishing fashion given the eternity they had to make this truck even better.


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