Toyota and other engine recalls

[Exhaustgases]

Its so funny how the standard excuse for all of them is left over machining debris.
If so that will rear its ugly head much sooner than many of the talked about problems do.
Kia first to use that excuse now Toyota and Honda?

 

[Propflux01]

Toyota and Honda Are exempt from any condemnation here!

 

[Cujet]

Interesting that the connecting rod bearings are what is failing in the Honda engines. Honda claims this is due to improperly machined crankshaft journals, resulting in premature wear.

We could make all sorts of guesses as to the real cause here. One thing is clear, making an engine that lasts, even a high output turbocharged engine, is not only entirely possible, it is common.

 

[ATex7239]

It’s the machine or process at fault sounds better than “welp, our engineers ****** up.”

 

[b_b]

Toyota had to manufacture something with a lot of complexity at a large volume. they typically reserve the complex stuff for the low volume high profit products. they are learning high complexity and high volume are a challenge.

 

[BMWTurboDzl]

Toyota had to manufacture something with a lot of complexity at a large volume. they typically reserve the complex stuff for the low volume high profit products. they are learning high complexity and high volume are a challenge.

It's comes from having too many nights of heavy drinking with BMW engineers. lol.

 

[michaelluscher]

It's comes from having too many nights of heavy drinking with BMW engineers. lol.

They're a different breed all together


As for Toyota, I really wonder if it was a design/specification issue or a production tolerance/assembly QA issue?
These engineers must be the great grandchildren of those who gave us VZ/GE head gaskets and 2AZ bolt threads/piston rings

Only time will tell

 

[Pablo]

Its so funny how the standard excuse for all of them is left over machining debris.
If so that will rear its ugly head much sooner than many of the talked about problems do.
Kia first to use that excuse now Toyota and Honda?

Link? Not sure what you are posting about.

 

[thunderfog]

Link? Not sure what you are posting about.

https://pressroom.toyota.com/toyota...022-2023-toyota-tundra-and-lexus-lx-vehicles/

 

[2009Caraman]

https://pressroom.toyota.com/toyota...022-2023-toyota-tundra-and-lexus-lx-vehicles/

Uh Oh. Looks like Toyota has produced a twin turdo.

 

[Exhaustgases]

Link? Not sure what you are posting about.

All you have to do is search, its easy cheesy. You will see major issues with all the car and truck makers.
GM, Ford, Mopar (craplantis), Honda, Kia, Lexus, Toyota, just pick a name out of the box.

I'd like to know who to contact at the Toyo place to help resolve the problem for them?

 

[Exhaustgases]

Here is another link for ya all.

2022-2023 Toyota Tundra Recall - 98,600 vehicles for engine stall/failure issue

Toyota had these issues in other markets before. The US market is specific. Huge roads, cheap gas. That allowed Toyota to run simple engines for a long time and build customer base around that. In Europe they could not do that. They had to go with downsizing in 90’s too because in Europe family...

bobistheoilguy.com

 

[OVERKILL]

All you have to do is search, its easy cheesy. You will see major issues with all the car and truck makers.
GM, Ford, Mopar (craplantis), Honda, Kia, Lexus, Toyota, just pick a name out of the box.

I'd like to know who to contact at the Toyo place to help resolve the problem for them?

Extra douche bag points for only giving Stellantis a nickname there.

 

[Skippy722]

Extra douche bag points for only giving Stellantis a nickname there.
View attachment 222581

Some people are still stuck in the Malaise era

 

[Bullet]

Here's a mechanic discussing the lastest tundra engine failure.
He makes another video about the recall stating it may be from debris. As you can see the first rod bearing and main took a lot of heat.

 

[Exhaustgases]

Here's a mechanic discussing the lastest tundra engine failure.
He makes another video about the recall stating it may be from debris. As you can see the first rod bearing and main took a lot of heat.

I've seen some posts that say even engines from Japan have the issue. So really debris is everywhere these days. Honda has it, Kia has it, now Toyota has it. Rule 1 never blame the design, or engineering.

Oh and that is my favorite video, he shows absolutely nothing, just a short block with heat damage like you say.
Due to the warranty pay they get for all that I just bet none of the removed parts get cleaned.
I like the story's from some people that have had this done, talk about, it was a few days or weeks it happens again.

 

[wemay]

Regardless of the makes I've owned, VW, Hyundai, Toyota, Mitsubishi, Audi, KIA..., every last one had passionate unreasonably critical folks chomping at the bit to get their two cents in on the respective forums.

I'm done with the back and fourth. Id rather be making a BLT instead.

 

[michaelluscher]

Regardless of the makes I've owned, VW, Hyundai, Toyota, Mitsubishi, Audi, KIA..., every last one had passionate unreasonably critical folks chomping at the bit to get their two cents in on the respective forums.

It's all inanimate machinery, it's gonna break somehow eventually

I'm done with the back and fourth. Id rather be making a BLT instead.

Get the Hellman's out

 

[Cujet]

No idea why the Toyota engines are failing, but at 3.45L and 385HP, they are not out of the norm with regard to HP per displacement or HP per cylinder. Ford's 3.5EB makes as much as 450HP in stock form.

However, when you see "just" rod bearings fail, it is likely a combo of design insufficiency coupled with an oil related issue (too much load). Many modern engines use considerably larger diameter rod bearings to avoid problems.

In the case of the Toyota 3.5L turbo, not only does the #1 rod bearing fail but the front main bearing also failed. That may indicate insufficient oil pressure or flow here.

In our past turbocharged engine development, we did not have oversized bearings or variable flow oil pumps. What we did have is plenty of oil pressure and adequate viscosity.

It should be noted that the required oil for the Toyota is (I believe) 0W-20.

 

[supton]

In the case of the Toyota 3.5L turbo, not only does the #1 rod bearing fail but the front main bearing also failed. That may indicate insufficient oil flow here.

Leftover debris would have random damage all over, right? I mean, oil leaving the oil pump doesn’t all go to one place, in a series to the rest. But has multiple branches?

Or is that one bearing where it branches out from?