Blown engine

I'm still interested to see if there have been any reported engine failures on the MY22 or MY23 Sequoias or the Lexus LX600s. Their all the same engine AFAIK.

The sales volume of those models (I assume) are much lower than the Tundra, but there should be a few failures by now, if it was a design issue specific to engine. If there are no failures on those models, then I would assume the problem was isolated to the Tundra manufacturing line...which would likely point to bad batch of bearings.

 

Well, I'm not sure they assemble the engine on the Tundra manufacturing line, do they? I would imagine the long blocks are just installed on the Tundra manufacturing line.

 

Which could very well mean they don't intend to fix it... because it is rare enough to not be worth the trouble. How much trouble I wonder? If it's a bad supplier, part out of spec, this should be easy.

I would hope that they would in order to protect their reputation of reliability, but who knows...

 

In good old days that discovery would warrant and TSB or TJ.

 

This.

 

TBH, I don't know where the full long block is assembled. I assume in the same plant but not on the actual manufacturing line. I'm pretty sure the LX600 is assembled in Japan. The Seqouia is assembled in the same San Antonio plant as the Tundra. I guess regardless of the assembly location, if it were a design issue with the oil passages of the block, then it should impact all blocks equally, no?

 

Toyota Quality Management process. They know exactly what manufacturer, lot and vehicles installed. Unless TQM process broke down not completing records.

Should also have mean rate failures based on total Tundras built. This keeps the failure rate much lower vs. using the number only for Tundra units build with bad bearings.

Most likely much lower than we think and as such adopting fixing on case by case basis.

Either way, Toyota keeping tight lid on communication.

IMO, should offer extended warranty coverage for these failures.

 

So I'm not so sure if the LX600 engine is exactly the same as the one we have in Tundra. Same engine? Yes, but not necessarily built in same plant as Tundra engines.

According to the Car Care Nut, in his review of LX600 couple weeks ago, he said that it's not the same as Tundra engine because it's not assembled at the same plant (I'm guessing Lexus engines may be built in Japan?).

Not entirely clear information but that's what I picked up from the car care nut during his mechanical review of LX600.


Ps I see you mentioned this same information in your next post..

 

Agree

 

Yes, same engine, the V35A-FTS. But they are not built in the same places or with parts from the same suppliers. The MIJ V35A-FTS that goes into the 300 series and LX600 is built in Japan, and its turbos are supplied by IHI Japan.

The MIA engines get their turbos from IHI America, which are built under license from IHI Japan.

I haven’t looked in a while, but I don’t recall any V35A-FTS failures over on the Land Cruiser forum. This leads me to believe the issue is isolated to the ones built here.

 

FWIW, someone posted here saying they were from Saudi Arabia and talking about the same types of failures in the LC300 and LX600 (MIJ V35A-FTS).

https://www.tundras.com/threads/off...discussion-thread.125154/page-10#post-3309093

Posts #274 & #276.

 

Sounds right.

The 5.7 in the 200 Land Cruiser was built in Japan.

The Tundra 5.7 was built in Alabama.

 

reading through the posts I see it mentioned that the engine failure or builds from 03/2023 and earlier are suspect to failure? I have a 03/2023 build, what data is available to confirm this?
Thanks

 

Nothing more than what you've read here that has been shared by the impacted owners themselves. Or, if you're on social media, in the Tundra groups on Facebook.

There is no "official data" from anywhere, least of all from the place it would matter most: Toyota. There is only 1st party recounts or anecdotal information shared by 3rd parties that they heard from someone else.

 

Interesting discussion. The way the OP described the failure and subsequent spun bearing diagnosis/discussion is very reminiscent of the Ram Ecodiesel engine failures due to spun bearings.

 

I think toyota just stays quiet hoping it will slowly simmer and die off. A bunch of nobodies chatting about issues on the forum or social media doesn't amount much

 

Well .. we may seem like nobodies today, however we are their future customers.

 

Or lack thereof.

 

Got my oil analysis back....20k miles on an 11/21 build truck, 5k on oil. Went from 5ppm of Silver in my previous analysis @15k miles, to 11ppm @20k miles. Lets see if this is an indicator of a failing/failed bearing.

 

It’s the JB4!!

 

Funny you mention the tuner. When looking into it, this link popped up high in the search results. Basic summary: the guy recaps his convo with Blackstone about 7ppm of silver and it (possibly) being an indicator of bearing failure. On the tuner front: Looks like he’s running a Stage 2 tune via (I’m guessing) one of the BrenTuning flash modules. I’m assuming this guy is driving a turbo Impreza since this on the NASIOC website.

https://forums.nasioc.com/forums/showthread.php?t=2757118

Not the same situation, but similar enough to make me wonder. Turbo engine, high ppm of silver, tuned engine, etc.

 

Crazy

 

Seems to be limited to MY 22 non hybrid. Don't think we've seen an SR blow up yet

 

Pretty sure there is at least one MY23.

 

Plenty of hybrids and some 2023s have destroyed themselves. I haven’t seen a SR failure.

 

I missed the hybrid for sure then. I might have seen 1 23 but the majority are 22s...not sure if its because they have the most miles or what

 

Actually, I was joking. The additional boost should not lead an engine to its demise. Unless the amounts of boost are extremely high on an old engine

I was joking in regards to the JB4. I some additional boost kills this engine, there are other factors that will kill this engine.

My in-line 6 N54 TT BMW 335, was put thru the wringer a lot more than this Tundra.

 

Here is my experience so far. Went in to get my second fob programmed and had them look at a potential oil leak. Literally had one drop on my garage floor. They kept my truck over night and was told the next day it needs a new motor. Freeze plug was not machined correctly and caused the drip from the oil galley. Basically bad block. Short blocked the motor with 5300 miles. 2023 hybrid. Dealer was top notch in taking care of me so props to them.

 

We just needed to talk about it for it to happen. @koz69 - no tuning or other engine mods on your SR, correct?