2022 Tundra Engine Failure

That was just an example to answer the pay rate question. But yeah probably more than 20 hours now with all the extra sensors/complexity.

 

I do not like this emphasis on smaller turbocharged engines. I have had my 2.7L 2010 Tacoma since it was new. The truck overheated at 157K miles in September 2022 when the original thermostat failed and touched off a chain reaction that blew the head gasket. It was not until two or three weeks after the thermostat was replaced (after a leak down test and pressure test) that it became obvious the head gasket was blown. Even with a blown head gasket, there was no coolant in the oil. Head gasket and timing chain were replaced, and here I am at almost 190K miles with a truck that still refuses to die!

 

If you are not familiar with automotive terminology you would think we are talking two different physically sized motors here.
Short Block vs Long Block - refers to the state of completeness.

Key Differences Between Short and Long Blocks
Short blocks include, and fully assembled, the block, crank, rods, and pistons. Short blocks may include other items such as the camshaft, timing chain, and covers. Long blocks are short blocks plus the heads and typically the valvetrain installed.

So for the Tundra Engine repair with a Rod / Bearing failure, you are getting a block with the failed parts (rod/bearing) already assembled; the remaining parts are then pulled from the original engine and installed by the Toyota tech at your service shop?



Used 2022-23 Tundra Engine
https://www.ebay.com/itm/364607433734

 

Correct. I'm well aware of the differences...

They are only replacing the short block (block, crank, rods, pistons) and transferring over everything else...

See this post for the difference in price - OFFICIAL MY22+ Tundra/MY23+ Sequoia V35A-FTS (Type '21) Engine Failure Discussion Thread

 

How in the actual fignutons can a turbo yoda engine be a bad thing? 1JZ, 2JZ, any bells yet? Yea dealerships here in the state are riping us off with mark ups, but if you want a new car or truck you either buy a year old used, or bite the bullet. A turbo Taco sounds like it could be stupid fun and practical. All we need now is a Toyota built 3.0 TDI Tacos and Tundras, cough cough Hilux.
@ the OP, Shit luck bud, have that dealership give you a rough eta and keep you in the loop at every stage.

 

What is concerning with a short block replacement.........are they checking all the parts transferred over for damages and tolerances issues? Having grenaded a few engines, once apart, always good to check everything.

 

That's assigning a bias unfairly. That implies that the preference for a V8 is somehow magnifying a problem with the turbo 6. Is there that bias for some, yes. On the flip side there is also the bias of the adopters who refuse to admit that there may be an issue at all, or fall to their own confirmation bias and say that the problem is overblown because of bias on the other side. Neither is helpful.

I prefer the V8, but not because I'm afraid of them changing to a turbo engine. Turbo engines have been demonstrated to be fine. The trouble starts when you put an engine that is inadequately sized for the duties of the vehicle, and then artificially inflate it up to usable standards with a turbo. That is a recipe for stress. Can a small engine with turbos or a supercharger make equivalent or better power, sure. It's not free though. If it were, why wouldn't it have been done that way 10 years ago? Why isn't everything small displacement forced induction? Because there is a cost.

To see the price that will be paid, look at an extreme. Formula 1 cars run a 1.6 liter turbo V6 and are around the 1000 HP mark. Why don't they just use something like that? Because the level of stress in a small displacement, forced air, high revving engine isn't affordable to the average person. Those formula one engines are torn down/rebuilt/replaced every 1500 or so miles.

So, can a small displacement engine make big power? Sure. Will it make that power for as long as a larger displacement engine without requiring more maintenance or a rebuild? Nope. Are turbos another possible point of failure and a known part that must be replaced during the life of an engine, similar to an alternator or starter? Yup.



Also, that "superior power and torque" is hardly earth shattering over the outgoing V8. The 5.7 made 381 HP and 401 lb-ft of torque, while the new turbo 6 makes 389 HP and 479 lb-ft of torque. 8 HP and 78 lb-ft. So much more that it's never quoted number to number, always just "superior." Your bias is showing.



I think they'll get the kinks worked out and the 3.4 will eventually be as reliable as possible, but I don't think we'll see any hotshot drivers hitting a million miles on one without some major repairs and parts replacements.

 

To be fair, I thought Formula 1 engines were typically torn down after each race, even when they were using V12s or wherever they were in their heyday.

 

Because turbos should be used to boost an already adequate engine. Not to make an undersized and underpowered engine for the vehicle barely meet the basic standards for use.

You also cannot seriously compare diesels to gas, especially when it's diesels that aren't brought to the US because the CA/EPA emissions BS would gut their reliability. Why do you think Toyota doesn't offer a diesel in The States?

 

Devil's advocate: the 3.4 makes it at 2400 RPM, not at 3600 or 5600 RPM.

 

And those V12s were 3 liters. Number of cylinders doesn't change the fact that they were small displacement high revs working their guts out.

 

How fast are the turbos spinning at that speed? How much boost pressure does it take for that tiny engine to be able to make that power at that RPM? RPM to RPM comparison isn't as simple as you are implying.

 

Also, not accurate. It saves you 400 RPM to hit max HP. Earth shattering.

 

I know most 1/2 ton owners just use them to get groceries but HP is less relevant than torque for those that tow, what’s the RPM differential to make peak torque?

 

For reference my truck makes 450 ft lb (90% of max) at something like 1700-1800 RPM (can’t remember exactly)

 

Sometimes I have a lot of groceries and need 583 ft-lbs of torque to get them home!

But all I have is 479 ft-lbs and I have to rev it to 2400 rpm. Look out Ford, here I come!

 

See post #966.

 

Gotcha, well, I’ve towed heavy with big V8s and I’ve tow with small twin turbos and I can tell you there’s a marked difference. Guess which I prefer?

 

Totally fine with that and respect it. I am in no way shaming what anyone wants to buy. I was just arguing against the stupid being pushed that if you prefer a V8 you're some kind of cave man denier who just needs to be dragged to the truth of the turbo 6 savior trucks.

I wish Toyota offered both. If they had an updated 5.7 with a 10 speed and the V6 it'd be sweet to have the option.

 

Here is an example of making a lot of torque with a tiny displacement. 1.9L 4 banger TDI (pre diesel gate).

When we got the car, it was like driving a generator with seats. but after a few choice mods we got it up to 314 ft-lbs. at 2,500 rpm up from 155 stock.

The HP went up to 160 from 90 stock.

The torque was amazing even when we pulled our Camplite up 10% grades. It was a real sight to see!

If I could get a 3.8L V8 TDI (doesn't exist) that produced 700 ish Ft-lbs. I would consider an engine swap

 

I get what you’re saying and respect your opinion as well, I just took issue with you seeming to deny the performance difference. But maybe I misread you.

If Tundra was produced in higher numbers they may have been able to justify continuing with the 5.7, maybe even mated to the ten speed.

 

Glad you liked it, but again, diesel isn't a valid comparison. They work differently.

 

Oh not at all denying it. There is a difference, and that's why lots are happy to swap over to it. I'm just not convinced the smaller displacement turbo engine will have the same kind of longevity without some major repairs or replacements being needed. It's really only relevant for those who are going to keep it for 10+ years. If it's a 5 year stint before it's replaced, I don't see a major issue.

 

Ya, I guess I must be reminiscing about the good old days. I do hope that the V6 gives many faithful years as I am not one to switch out every few years.

My last Toyota was a 73 Celica so coming back to the Toyota after many years, I feel like I have walked into some sort of alternate reality where we pay money and willingly become beta testers for large corporations (Toyota at the moment). But then after the beta test nothing changes and we are left picking up the bearings off the highway!

 

……

 

Not the mention all of this talk about low RPM torque on the V6 vs the V8 but it’s really just ignoring the fact that it’s all about the boost and not the number of cylinders. I prefer the boosted V8 option, so I can have my cake and eat it too. If I was a ford man I’d have a boosted 5.0 over the ecoboost, pretty sure they even warranty a Supercharged 5.0 all the same. I’ll give up the unloaded MPG advantage for the glorious sound. You can make more power and torque at the wheels than the 6 makes at the crank. Some good dyno sheets for reference here. Talk about low RPM torque, and it hangs around through the whole rev range.

https://www.tundras.com/threads/sc-dyno-number-comparison-thread.125030/

 

They make one from the factory...it's called the Raptor R...given it is the 5.2L, but still...

Ford Dealers are selling a "Lightning" package with a supercharger on the 5.0L that is warrantied...

 

Yes. That is the package to which I was referring. I don’t even consider the Raptor R in most conversation regarding half ton trucks for the 100k + price tag alone. It’s awesome, but it’s just not comparable or attainable for most.

 

Dealer markups will be a thing of the past...Ford is going to do direct to consumer...Porsche is doing the same thing...I kinda wish Toyota would do the same thing...

 

i understand your post but , as a real world owner of both and I have towed with both, it’s selling it short to just say 78 lbs of torque , it’s also down at 2400 with a 10 speed behind it

this new gen tows significantly better than the last gen, Toyota did a great job with this

so it’s not a bias to say it’s better, it just is, but it’s the next gen so it should be better . They did deliver here though