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re: Second Toyota engine recall delayed because company doesn’t have a fix for problem

Posted on 5/12/26 at 7:27 am to
Posted by KemoSabe65
70605
Member since Mar 2018
7266 posts
Posted on 5/12/26 at 7:27 am to
quote:

Back to top Posted on 5/11/26 at 8:23 pm to TheRealTigerHorn My explanation is from an idiots point of view. I didn’t make the claim but only repeated what I’ve seen from these guys. And what you said lines up with what they said. And what they said is their “theory” as to what “should” remedy the issue. The point of my post is to call BS on the “machining debris” lie. Because that’s what it is. Toyota is trying to cover their asses. They claim the engines that were failing from “machine debris” were all coming from the same shop when that was a lie


Everyone that has any machining knowledge knew this explanation was BS. Blocks are washed and scope by QC/QA before they get moved to the line. This is an engineering issue like the GM 6.2, Ford 6.0.
Toyota will eventually re engineer the 3.6 and it will work.
Posted by HubbaBubba
North of DFW, TX
Member since Oct 2010
52234 posts
Posted on 5/12/26 at 7:51 am to
quote:

Speaking as an actual retired auto industry powertrain engineer
My son is in an engineering program at UT. Starts his junior year this summer instead of taking a break, trying to stay ahead of the curve. His interest is in automotive engineering and more specifically, aerodynamic engineering.

He's already had several offers for internships, but opted to continue school rather that intern over the summer. He'll wait until next summer. Any recommendations on how to initially break into the automotive industry as an engineer?
Posted by Cuz413
Member since Nov 2007
11310 posts
Posted on 5/12/26 at 8:07 am to
quote:

From what I’ve read and saw on the internet, the gear heads are calling BS on this. It’s not machining debris, it’s a faulty design and use of the wrong oil. A thicker oil can remedy the problem.


There are some thoughts that the oil pressure gets far too low at idle and can't supply enough oil to the main bearings when accelerating from a stop, which is why the failures are happening in the non hybrids.

Allegedly they fixed an issue in Q2 of 2024. Rumor is a newer design of the 3.5 is coming with the 2027 line.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
72368 posts
Posted on 5/12/26 at 8:17 am to
It is fricking variable displacement oil pumps. fricking piece of shite government regulations driving us to this ridiculous design consideration and it is 99% of the reason that all of a sudden NOBODY can build a damn engine with lifters and cams that hold up. We've had hydraulic lifters for 60 years and all of a sudden nobody can keep frickin cams and lifters from grenading themselves.

We should all be happy that Trump cut the nuts off the 3 letter agencies because this was going to get much worse in 2027. Now it MIGHT start getting better. No manufacturer will admit it, because they don't want to tank their sales between now and '27.

If you own a vehicle with a regular ol oil pump, keep it. If you have one with a variable displacement oil pump, ditch it for one that doesn't have that junky arse garbage arse shite. It gains you about 1% better fuel economy in very specific EPA test driving cycles, and 10000000% more chance of your engine locking up.

I frickING HATE VARIABLE DISPLACEMENT OIL SYSTEMS.

Reciprocating engines thrive on oil flow. A shitload of it. It lubricates of course, but it also is responsible for a lot of heat transfer.
Posted by Pezzo
Member since Aug 2020
3016 posts
Posted on 5/12/26 at 8:17 am to
quote:

Rumor is a newer design of the 3.5 is coming with the 2027 line.


for toyota's sake i hope thats true, but ultimately that makes the 2022-2026 model years completely worthless. i imagine every one who still owes on one will be under water the second they announce a redesign.
Posted by JTM72
BR, LA.
Member since Mar 2014
1625 posts
Posted on 5/12/26 at 8:27 am to
quote:


I just bought a 2021 Tundra a month and a half ago, and it took me forever to find one with decent mileage at a decently fair price because people were scooping them up left and right.


This. they are few and far between. When replacing my 2014 tundra with over 200k miles back in nov 24, I was looking for a 21 tundra or older with decent miles. Took me about 5-6 weeks, finally found a 2019 with 39k miles, and bought it on the spot. I was about to head to natchez to look at another tundra with a v8. There were no other ones around that i could find.
Posted by Cuz413
Member since Nov 2007
11310 posts
Posted on 5/12/26 at 8:45 am to
quote:

but ultimately that makes the 2022-2026 model years completely worthless.


those vehicles will ultimately get new engines if they are in the build range exhibiting failures.
Posted by Everyday Is Saturday
Member since Dec 2025
2071 posts
Posted on 5/12/26 at 8:51 am to
First their high national debt to GDP ratio falters.

Now this.

Keep an eye on that sushi y’all are eating.
Posted by Clames
Member since Oct 2010
19720 posts
Posted on 5/12/26 at 8:58 am to
quote:

A thicker oil can remedy the problem.



As with Ford and GM, that's putting a bandaid on problem, not a fix. My Rav4 takes 0W-16, I use Idemitsu IFG-5 0W-16 with a 5K mile OCI and Toyota oil filter.
Posted by Pezzo
Member since Aug 2020
3016 posts
Posted on 5/12/26 at 9:23 am to
quote:

those vehicles will ultimately get new engines if they are in the build range exhibiting failures.


i have a friend who had one with a catastrophic MB failure, but his vin number didnt fall in the range of the recall so they didnt do the full engine replacement that the recall calls for. Toyota only replaced the short block. they wont replace the whole engine, they'll most likely replace only what part they deem is failing. which means you'll get an engine thats been in a million pieces and put back together.
Posted by boxcarbarney
Above all things, be a man
Member since Jul 2007
26906 posts
Posted on 5/12/26 at 10:07 am to
quote:

Insane EPA standards have ruined cars and are partially to blame for the insanely high prices. The government ruins everything!



That and our government removing 700k working vehicles from the market with their Cash for Clunkers debacle.
Posted by TheRealTigerHorn
Member since Jun 2023
448 posts
Posted on 5/12/26 at 10:20 am to
quote:

My son is in an engineering program at UT. Starts his junior year this summer instead of taking a break, trying to stay ahead of the curve. His interest is in automotive engineering and more specifically, aerodynamic engineering.

He's already had several offers for internships, but opted to continue school rather that intern over the summer. He'll wait until next summer. Any recommendations on how to initially break into the automotive industry as an engineer?


1. TAKE THE INTERNSHIPS! Probably too late now, but never, ever pass on an internship, even if it's not exactly what he wants.

2. Avoid automotive. Seriously. Tesla aside, which has its own stresses, the industry is incredibly cutthroat and political. Getting onboard with an OEM requires knowing somebody, checking a DEI box, or being the very pinnacle of your class. Out of ~500 interviewees who made it to the final round of in-person interviews at WHQ for the OEM I went to work for in 1990-something, I was ranked #3 for the entire year. They scored you on literally everything, right down to dinner conversation skills, in the two-day interview process. OTOH, if you know someone or check a box, you can bypass all of that. Asian makes skip the DEI part, but are incredibly ruthless in culling as you advance through the ranks. Toyota works on something like the European soccer league relegation system. Hire in there, the best stay with Toyota, next best go to Aisin to make transmissions, next best go to next keiretsu company in line and so on down to the poor slobs engineering door locks and weatherstrip. TMNA may be better, but your career path is capped there.

3. Aerospace is in the beginnings of a renaissance with electrification of flight, air taxis, etc. There is far more opportunity there. I left aerospace for automotive because the former was undergoing massive contractions after the fall of the Berlin Wall and the "end" of communism. If I were starting out today with an interest in aerodynamics, I would go aerospace, and ME is fine vs AE, maybe even better.

I could type for a long time, but the end answer will be the same - avoid automotive. There will continue to be significant upheaval in the industry over the next few decades. Google Sergio Marchionne's talk about capital inefficiencies. If you can wrap your head around that, you will see that there isn't room for so many automakers. What happens to the OEMs will be 10x worse for suppliers.
This post was edited on 5/12/26 at 10:40 am
Posted by Hangover Haven
Metry
Member since Oct 2013
34179 posts
Posted on 5/12/26 at 10:23 am to
quote:

This can't be true, IT'S A TOYOTA!!!!


The OT.
Posted by TheRealTigerHorn
Member since Jun 2023
448 posts
Posted on 5/12/26 at 10:27 am to
quote:

quote:

I just bought a 2021 Tundra a month and a half ago, and it took me forever to find one with decent mileage at a decently fair price because people were scooping them up left and right.


This. they are few and far between. When replacing my 2014 tundra with over 200k miles back in nov 24, I was looking for a 21 tundra or older with decent miles. Took me about 5-6 weeks, finally found a 2019 with 39k miles, and bought it on the spot. I was about to head to natchez to look at another tundra with a v8. There were no other ones around that i could find.



Hate to break it to you, but they are "few and far between" because they just didn't sell all that many relative to the market. Those models were selling at about 1/4 the rate of the more popular trucks. Yes, they last a long time. They also get awful FE and had dated interiors, electronics and ride/handling. People didn't buy them for all of those reasons.

The new one is setting all-time sales records for the model, and it's just competitive for the first time in years, not a segment leader in pretty much anything. We'll see how long the sales rate sustains.
Posted by TheRealTigerHorn
Member since Jun 2023
448 posts
Posted on 5/12/26 at 10:37 am to
quote:

It is fricking variable displacement oil pumps. fricking piece of shite government regulations driving us to this ridiculous design consideration and it is 99% of the reason that all of a sudden NOBODY can build a damn engine with lifters and cams that hold up. We've had hydraulic lifters for 60 years and all of a sudden nobody can keep frickin cams and lifters from grenading themselves.

We should all be happy that Trump cut the nuts off the 3 letter agencies because this was going to get much worse in 2027. Now it MIGHT start getting better. No manufacturer will admit it, because they don't want to tank their sales between now and '27.

If you own a vehicle with a regular ol oil pump, keep it. If you have one with a variable displacement oil pump, ditch it for one that doesn't have that junky arse garbage arse shite. It gains you about 1% better fuel economy in very specific EPA test driving cycles, and 10000000% more chance of your engine locking up.

I frickING HATE VARIABLE DISPLACEMENT OIL SYSTEMS.

Reciprocating engines thrive on oil flow. A shitload of it. It lubricates of course, but it also is responsible for a lot of heat transfer.


Well, you're right about Trump neutering the three letter agencies to an extent, but the repercussions of that will take a model cycle or two to play out.

As for variable displacement oil pumps, meh. They're not all that bad, at least not the ones designed properly. Automatic transmissions have used them since the 1970's. The lifter/cam problems have more to do with variable displacement systems and variable valve timing systems plus a healthy side serving of "proper heat treatment is a black art" that China still hasn't learned and all of the old guys who understood it are now DEI'd into early retirement or offshored. Just about every OEM has had issues with improperly heat treated valves, lifters, and cams in recent years.

There are a million ways to F up heat treat without realizing it, including the fact that it is a batch process that is sensitive to EVERYTHING, right down to how you arrange the parts going into the oven. Ever notice how not every cookie is baked to the exact same degree of doneness? If that slightly overdone cookie is a valve or lifter, it's gonna fail early. This can be VERY hard to catch in production.
Posted by stuckintexas
Austin & DFW
Member since Sep 2009
3317 posts
Posted on 5/12/26 at 10:41 am to
quote:

Toyoda

Posted by philly444
stuck in contraflow
Member since Nov 2008
12385 posts
Posted on 5/12/26 at 10:59 am to
Shoot I’ll be hanging into my 2012 Tundra for the foreseeable future. Until it makes sense to upgrade, which doesn’t appear to be right now.
Posted by JTM72
BR, LA.
Member since Mar 2014
1625 posts
Posted on 5/12/26 at 11:46 am to
quote:

had dated interiors, electronics and ride/handling


I completely agree with interiors and electronics, they were far behind the times for a long time. All the bells and whistles is not what sells me on a vehicle, that just more shite that can break and have to pay to get fixed.I don't have an issue with how it rides, tho I'm not in other trucks often enough to really compare. I bought it because of their reputation under the hood. I hate taking my truck to the shop to get worked on, who has time for that.

I got rid of my 2014 at just over 200k miles, and literally the only time I had an issue was my starter. at probably 130k miles.
Posted by HubbaBubba
North of DFW, TX
Member since Oct 2010
52234 posts
Posted on 5/12/26 at 1:20 pm to
My background is in technology support and design in defense, aerospace and space systems. I know tons of contacts at most defense agencies, three letter LE agencies, NASA, SpaceX, defense and space contractors. Next year, he has an internship in hand in the corrugated paper industry but is seeking one with Lockheed and/or Bell. I have asked him not to accept anything from Raytheon. You give up your soul to work with that company.
Posted by VolsOut4Harambe
Baw Land
Member since Sep 2017
14629 posts
Posted on 5/12/26 at 1:33 pm to
Yet another reason why the used car market is out of control.

Who wants to buy this overengineered crap?
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