Tundra engine recall - interesting news

I Plan on dropping in and getting a second opinion in person.

 

So the math is mathing again? lol. Or is all of this just monkey business?

 

I'm not trolling the Gen3 owners at all. They are smart people and bought a damn good truck. I just don't understand why Toyota ditched the tried and true 5.7L in favor of the 3.5TT. Many of us have 5.7's with well over 200K miles on them and they just keep rolling on. I could understand if the fuel shot up 6 or 7 miles per gallon, but it doesn't, from everything I'm reading.
Just my 2 cents.

 

I don't think the objective was fuel economy. I think they were anticipating emissions requirements going forward.

Ford has a similar challenge with the 3.5EB and 5.0 Coyote. In real world usage, the 3.5EB isn't any more economical than the 5.0 Coyote, but the 5.0 Coyote's emissions is what is likely to endanger it.

 

A motor can be a great design. But when you change its purpose, and in this case re-purpose a motor for truck duty.
Its always pulling more vehicle weight now, and being asked to tow and haul.
Having to add turbos that use the same engine oil, to accomplish this.
I have owned 3 turbo vehicles cars that could be bought in NA Normally Aspirated mode and with a Turbo option for performance boost.
My take is if the vehicle cannot be driven in normal aspirated mode, I question the intent of the engineering team.
Just look at the size of the cooling elements in front of the engine. Impressive when you look at it. I hope it proves to be a great setup. Reliable and durable.
But - In doing everything engineers thought was needed to keep the engine/turbos cool and happy. They came up with a design that took away truck elements like front approach angle, tow hooks, turning radius.
Signed - Hairy, Grumpy and hanging out under a bridge from snowblowing lake effect snow the last two days,

and fwiw - I know someone from the Toyota team is watching this thread. I never got a questionnaire as a long time Tundra owner for input on the new Tundra. Maybe the post is an "in' to them to get my 2 cents in.

 

On my 2021 I averaged 14.4 mpg. My 2022 is at 19.3 that's real money thanks to Uncle Joe's energy policies.

 

Kinda like that 3.8 liter V6 Buick had back in the early 80’s. Really turned out to be one bad ass combo in the Grand Nationals.

I get your point, but this motor seems to be built to withstand the boost. It is quite beefy looking for the videos I have seen of opening them up.

I bought my 2022 truck just a few months ago. I wasn’t told by the dealer the extent of the recall. Only that Toyota was fixing the problem if and when it occurred. I wasn’t aware it was a full blown all 22/23 trucks were affected. Would that have changed my mind against it? I don’t believe so, but it would have changed my angle of negotiating. I am just getting back into a Toyota truck after 18 years without one. I feel confident Toyota makes a great product. And I believe they will correct this issue. We have all heard of the old saying, you can’t please all the people all the time. We see that clearly here. There will be people that demand unreasonable ideas. Then again, maybe my purchase of an 84 month/125K bumper to bumper warranty helps me sleep better at night. And I usually am against these warranties. Being a hands on car owner for decades, I would always maintain vehicles myself. I look at all the technical crazy things on drivetrains and all over the entire vehicle and don’t want anything to do with it. Spend some money now and protect what I plan to have 10 plus years. That was my theory.

I will sit back with my popcorn and try not to interfere again. Well, I may find it irresistible at a point here and there. But I was looking for this thread to be more of a news feed for when motors are replaced the resolutions in action.


Mike

 

Uncle Joe, or sleepy Joe?

I wouldn’t credit any of that to either one actually. We all know that adding forced induction adds power to a motor. When doing it in a manner of using waste exhaust to produce that air supply, it only drastically improves the efficiency overall as the power is made only when demanded. Why drive a 500HP motor all day when you don’t need it. Drive a 250HP motor and have the 500HP motor at your toes when needed !

Best of both worlds IMHO.


Mike

 

The NA Buick Dauntless 225ci V6 saw time at the Brickyard!

 

The next set of emissions regulations in 2027 focuses on smog. I've made a video on this after speaking with experts who work with the EPA. The plan is to add gasoline particulate filters to gas engines and increase the size of the catalytic convertors. Those two things will ensure that gas engines meet the next set of requirements. Nothing is going to change for diesel engines.

Interestingly, the GPF is already part of the EU emission requirements. This Tundra 3.4-liter V6 is already using GPFs globally and I'd assume Ford has done the same globally as well.

And... I'm already hearing the outcry over the GPF due to plugging concerns related to the DPF. I chalk that up to change and how nobody likes it.

#mytwocents

 

It's the emissions standards

The mpg standards to a lesser extent. You can pack the new engines with various test cheating technologies that in daily driving get .00001 more MPG.

 

The V35A-FTS was designed from the ground up to be a turbo motor. It wasn’t a repurposed V6 from previous models. It’s in the application it was designed for. Although we might never get all the details on this recall, I believe this is more of a human error than an engineering issue.

 

Re-purpose meaning using for truck duty.
The Car Care Toyota guy has already shown parts have changed on the motor pointing to > Design.
Time will tell. good luck .

 

The 5.7 V8 was in the Lexus for a few years before making its way to the tundra, same as the V35A-FTS. In fact, the V8 stayed the same when it started its life in the tundra and the TTV6 had differences in turbos and some other elements for its move from Lexus. Was the V8 repurposed also then?

As far as parts change goes, can’t it point at improving a component to negate the effects of human error that wasn’t supposed to be present in the manufacturing process?

 

My overdeveloped sense of guilt doesn't change your contradictory statements.

 

To be fair though - it was designed for a car, right?

 

It was designed for the same applications the beloved (me included) 3UR-FE V8 was. Followed the same sequence of vehicles before the tundra. Just because it was in a Lexus car before it was in our trucks doesn’t mean that was its only design purpose. So by that logic the V8 was designed for a car too.

 

Whoa whoa whoa - a 3UR is in a car?

 

Ok, my bad, didn’t know we were doing the whole semantics thing here. I meant SUV. Some people still call those cars

 

the 2UR was in a car and where it started I think, its was 5.0 L

I think they then punched it out to 5.7 and made it the 3UR

I could be wrong, not 100% on that

 

Design for manufacturing is a real thing that many engineers are dedicated too across multiple industries. It's plausible the engine debris issue caused a redesign to accommodate better engine flushing practices.

 

you weren't far off, toyota usually starts in the cars then mods or evolves for SUV/Trucks, thats what the V8 "family" did and what the boosted one are doing

I think the V35 is more geared for SUV and Trucks with is super under square design and large emphasis on low end torque peak at 2,400 and even lower at 2,000 with the performance TRD thing, which is actually just the tune from the Lexus.

its crazy the V35 is more under square than a cummins...

 

The SUV in question is heavier, has more payload, and a higher GVWR than the Tundras they put it in. It wasn’t a sedan that never sees any load or towing - and yet the V35 still failed with the same bearing issue.

 

Nope.

 

I’m curious if all those boat motors you’ve told us about and shared pictures of were designed for boats?

 

What do you think root cause is @sudobash?

 

Big block Chevy and hemis? Built for power and sex appeal. Crossover to boats just fine.

 

even with his super powers, not Ryan doesn't know either...

 

So you’re saying it’s possible for a motor to have more applications than just the one it was designed for? Not that I agree the V35A was only designed for a car.

 

lol.
Just asking opinion, Mr. Dash seemed confident it was NOT a bearing issue. He didn’t say ‘nope’ to the new ‘rocker’ suspicion coroner mentioned. Has Mr Egg/Dash heard that? Does he think debris was the issue? So many questions.
Another question is when did the theory that Bubba/Kevin was sabotaging get forgotten? Wasn’t that true?