4th Gen Blows the Doors off the 3rd Gen

Honestly, I’m surprised you are so enthusiastic about the 3.5v6 considering how many problems toyota had with the 3.0v6

 

To be honest, I'm crossing my fingers and relying on Toyota's years of v6 experience and Tacoma's reputation. This is my first Tacoma (which hasn't even come in yet). I will say this, the last turbo vehicle I worked on was a buddy's couple year old Ram truck. Blown head gasket (all of my turbo cars suffered this issue eventually) and complete turbocharger failure. Even the big 6.7 Cummins turbos commonly suffer from worn out bearings or leaking seals. Sometimes an inexpensive fix, sometimes needs a replacement of the turbo. I'm not a fan because the issues have persisted. When I was younger I drove everywhere like I was Mario Andretti. Many of us did. As I get older I'm hawking gas station signs to save .02 a gallon and sticking to the speed limit to try to squeak out an extra mile or two on the tank. A turbo isn't necessary to do that and a bigger engine will do it with a lot less stress. It's literally physics.

I did a quick goolag search on the engine and found this. It's not unique to the Cummins: https://dieseliq.com/the-5-most-common-isb-6-7-cummins-engine-problems/

"As turbos age, leaking oil seals and worn bearings are among the most common issues. B6.7 Cummins turbos run in excess of 100,000 RPM’s. Over time, the 6.7 turbo bearings may wear down and lead to excessive shaft play. If left alone the turbine or compressor wheel may contact the turbo housing and result in complete failure.

Since turbos run off incredibly hot exhaust gases it’s important to allow the oil to reach operating temperatures before pushing the Dodge Ram 6.7 Cummins too hard. Cold oil splashing on hot turbo seals is a recipe for premature turbo seal problems. You should also let the truck idle for a couple minutes before shutting down the engine. This will help cool the turbo.

Turbo problems can pop up at any point, but it becomes much more common north of 120,000 miles. A turbo rebuild may be possible. However, if your 6.7 Cummins is high mileage on the original turbo it may make sense to replace the entire turbo."

 

If I have to spend a couple Gs to replace a turbo after a decade or so of having more horsepower, torque, and fuel mileage than a previous Tacoma, I’ll consider it money well spent. I’ve done a lot more than that on my first gen.

 

Fair statement, but in my experience it's never "just" the turbo. On one of my cars I had a cracked cylinder wall. On several I got warped heads. I used to keep head gaskets in the shop like someone would keep spare oil filters. As stated, it's too early to tell one way or the other on the '24s and I hope I'm wrong. I was in need of a new vehicle THIS year and I wasn't willing to take a chance. The added fact I couldn't get the TRD OR with an access cab made it a real easy decision... plus I really like the 3rd Gen.

 

Again, though, you’re talking about 30 year old Chryslers.

Im currently sitting in the passenger seat of my wife’s turbo Mazda and it hasn’t had a single cylinder wall crack. So crazy.

speaking of head gaskets, though, that’s a place that technology has come a LONG way since 30 years ago. I used to run o-ringed blocks and still lose copper head gaskets in my Camaro. Now a composite head gasket and I haven’t touched them in several seasons. Just one of many, many advances

 

Again... reading is important. I literally just finished working on a relatively new turbo diesel truck. Crazy indeed how you missed that. But I'm sure your wife's tiny Mazda will work just as hard as a pickup truck pulling 6000 pounds and all. Does she do a lot of off roading in it?

 

See the paragraph I edited in.

and also have you ever repaired an NA vehicle? I’ve sure worked a bunch on my 7.3, but I don’t consider it unreliable as a result. Parts break. Fix em. Sure, there are unreliable vehicles and engineering failures out there, but you’re basing your complaints on old, anecdotal, and questionable reasoning

 

I've been working on cars since I first started to drive, whether it's fuel injected, carbureted, super or turbocharged. If you consider working on turbo vehicles for over 30 years is "old, anecdotal, and questionable" you should grab a dictionary because those words don't mean what you think they mean. I happily stopped owning turbo vehicles about 20 years ago. I still work on them, drive them, and have friends who own them. The ONLY thing you've stated in over a page full of blathering about how amazing the new fangled automotive engineering has come is you think head gaskets have come a long way. What kind of reasoning is that?

If you can, answer this question. Do you think Toyota moved to the turbo 4 because it was better and more reliable than the v6 or do you think they did it to compete on emissions and fuel economy? Show your work.

 

You two should take your argument to private messages. You’re cluttering up the thread.

 

No need. I just stated my opinion on turbocharged engines and he doesn't like it and can't let it go. It's that simple.

 

And I told you why your opinion is rooted in old myths, conflating racing with factory developed stock vehicles, and outdated knowledge and you can’t let it go. It’s that simple.

 

True enough, and with that last post, I’m calling it quits

 

Since my mum passed away, my pop is all I have left. We had a 6-hour long discussion regarding 2023 vs 2024 model, and which one I should go for.

My dad recommended 2024 even though he is aware about turbo reliability. We are a Toyota family, and he has immense trust in Toyotas.

Not to mention, it is almost impossible to get a manual 23 Tacoma without being on a waitlist months ago. Same with the 24 as well, I imagine. I'll be excitedly window shopping in the meantime.

 

I have a bias against large midsize trucks and 4 cylinder engines. I know the tech may be good and supporting it with the turbo and then some... It just feels wrong. I wouldn't mind getting convinced. But heck, you can't even test-drive one if you wanted unless you buy it first, and that's not happening - sorry, Toyo, not here. I am toyota fan since 2011 - bought 7 of which 2 were the 3rd gen tacoma. And now I am disappointed. I am disappointed right now anyway, because at 2 years 6 months in, the AC is losing pressure and that sucks. I am so 'fan' that Toyota offers me a buyer-rebate directly from them, which I haven't been able to use for 2 years now... I wanted to switch my wife from the Corolla to a RAV4. I love my Taco TRD. The outlook is not good in my opinion, not with an ever-shrinking engine size. Frankly, I want the Taco in a Diesel. Plus if my AC repair is going to cost me mega, I am not going to be loyal anymore.

 

You’ll have plenty of opportunity to test drive one if you wish before purchasing. Why would you think that’s not possible?

 

https://www.youtube.com/watch?v=NzOOjYjqHvs


Tempting but its good idea never to buy first two years of new gen unless you have other car as spare. It will have some issues and recalls, it has nothing to do with quality its just natural thing with most vehicles, and products. To me it looks kinda too sporty with engine that it has, I was never fan of cars looking all cool and sick while engine is not fitting the looks. That's just me however.


I will keep my 23 Tacoma that looks like regular truck, and delivers more than expected.

 

Just get her 4runner, a solid truck that is capable, bit expensive though! Yes I agree with you about large midsize trucks looking all sick and angry. 2024 Tacoma almost looks like Tundra, however Its engine is nowhere close to Tundra. LARGE but having potato under the hood! For me Tacoma is more about capability and reliability, a 4runner for example which I had definitely was a sporty car with massive 4.0L engine. 4runner and Tacoma used to be like sister trucks, not anymore.

I believe not just Toyota but all other trucks now days look all sporty and are made of plastic because of consumers.. Before they used to build trucks for people who needed them. Now days its build for people who need them but also ones who DO NOT need them but want to have them just because its called a truck...

Like plastic " chrome " bumper on my 2023 Tacoma is prime example of that, literally.

 

... because that is what the dealers here in Utah are telling me. Stock / inventory is low on all their vehicles. If enroute they say they are already sold and can't be test-driven. So they say you buy it and then test drive it when it arrives and if you don't like it they will sell it to someone else. That may be what these dealers like to do nowadays, but I am not working that way and never will. And that is the problem here in Utah at least.

 

In a recently released tfl video they interview the head of r&d for engine durability for 4th gen Tacoma . He stated that the 2.4 was tested to 1.6 times the durability standards as 2.4 in the transverse applications. The turbo was also tested to 1.3x the thermal durability standards. So the 2.4 in the 4th has been designed with truck duty in mind. It is also bench marked against the previous Tacoma engines durability wise. Too many people on here act like they just grabbed an engine off the shelf without any regard to the needs of it’s buyers or the long term reputation the model line has built in terms of longevity.

 

I'm not ripping on Toyota R&D but marketing speak is marketing speak. I'm pretty sure ALL vehicles equipped with a turbocharger have engines designed with a turbocharger in mind and are thoroughly R&D'd... up to a point. Toyota "did testing" before they removed the secondary ATF cooler. Is the ATF better or worse with it? Better, even if marginally. The simple fact of the matter is a turbo charged 4 cylinder works harder than a 6 cylinder doing the same job. That means parts will wear out faster. Regardless of how well the engine is designed, these facts don't change.

https://www.motorbiscuit.com/5-downsides-of-a-turbocharged-engine/