Reliability called into question (1 Viewer)

[TheLCProject]

I'm sort of thinking the same thing - that ATRAC would be more forgiving and 'gentle' (for lack of a better word) than Front Lockers

I feel like that's true for rock and sand and other conditions where traction is hit and miss. This spot seems like it's all just inclined ice.

So with a locker here you'd have engine power just equally divvied up and they'd all just be spinning equally and matching the engine revs. But instead, it's like you've got a bunch of engine power being directly thrown into alternating left and right hard braking. It's as if there were two brake pedals (one for each side) and you're two-footing it, with one steady on the gas and the other one alternating hard presses left and right?

I think we are all at the conclusion that this shouldn't have broken the Tacoma, but it's fun to try and figure it out.

 

[Phillyd2]

I feel like that's true for rock and sand and other conditions where traction is hit and miss. This spot seems like it's all just inclined ice.

So with a locker here you'd have engine power just equally divvied up and they'd all just be spinning equally and matching the engine revs. But instead, it's like you've got a bunch of engine power being directly thrown into alternating left and right hard braking. It's as if there were two brake pedals (one for each side) and you're two-footing it, with one steady on the gas and the other one alternating hard presses left and right?

I think we are all at the conclusion that this shouldn't have broken the Tacoma, but it's fun to try and figure it out.

I added to my post - The missing considering is the Speed Limiter with ATRAC which I assumed is set to below a breaking point so it shouldn't matter if its rock, sand or ice.

 

[jayp2]

The good thing about someone with lots of views and subscribers is that it will be much more likely to be noticed by Toyota, where if it happened to you or me it might be ignored or dismissed as a one off. Even if this was a one off Toyota would be more likely to address it.

Toyota wont be able to avoid a recall campaign if there's actually an issue and do what they have in past.....address things quietly on a case by case basis

Not digging Toyota because they are generally good/much better than competitors about fixing stuff but....

 

[Corbet]

I don’t understand what you are saying here. What do you mean by “a hood placed on all Tacomas”? Are you trying to say that Toyota placed a stop-sale order on Tacomas?

yes, that is what I thought I heard. But again i was not fully paying attention

 

[turbo8]

There is some discussion on tacoma world about it. This post has some undercarriage pictures. I'm not sure the thread is worth the read though...

 

[Phillyd2]

There is some discussion on tacoma world about it. This post has some undercarriage pictures. I'm not sure the thread is worth the read though...

See! We aren't so bad after all in comparison

 

[malden]

I was at a Toyota dealer yesterday. They told me there were recalls on Tacoma and Tundra. The 250 is delayed by 3 months. The new Gen 6 4Runner is delayed as well, by as much as 3 months.

That was fine with me because I went in looking for a Gen 5 4Runner, but they are not giving them away yet.

 

[TheLCProject]

Now that's legendary. Will anyone take delivery of a 250 before a year passes from the reveal last August?

 

[malden]

Now that's legendary. Will anyone take delivery of a 250 before a year passes from the reveal last August?

Bestcarweb from Japan has the story here. Looks like 250 production is delayed until May.

ランクル250の発売再延期決定は本当だった！　発売は5月上旬までズレるかも？　本当に大丈夫か！ - 自動車情報誌「ベストカー」

先日、ランクル250の発売延期をお伝えしたばかりだが、2月20日、一部の報道機関がランクル250の発売を1～2カ月再延期するという情報を配信した。それは本当なのか？　真意のほどを確かめるべく徹底取材した。はたしてランクル250の登場はいつ…

bestcarweb.jp

 

[Phillyd2]

Bestcarweb from Japan has the story here. Looks like 250 production is delayed until May.

ランクル250の発売再延期決定は本当だった！　発売は5月上旬までズレるかも？　本当に大丈夫か！ - 自動車情報誌「ベストカー」

先日、ランクル250の発売延期をお伝えしたばかりだが、2月20日、一部の報道機関がランクル250の発売を1～2カ月再延期するという情報を配信した。それは本当なのか？　真意のほどを確かめるべく徹底取材した。はたしてランクル250の登場はいつ…

bestcarweb.jp

Any guesses on what this actually means:

The reason for the postponement is explained as ``to proceed with the certification process appropriately and carefully.'' Specifically, it has not been revealed what kind of problems are occurring regarding the release of the Rankle 250.

At the moment, Toyota seems to have notified us that the next announcement will be made in "early mid-March," but dealers are also feeling perplexed by the unexpectedly large delay.

 

[malden]

Any guesses on what this actually means:

The reason for the postponement is explained as ``to proceed with the certification process appropriately and carefully.'' Specifically, it has not been revealed what kind of problems are occurring regarding the release of the Rankle 250.

At the moment, Toyota seems to have notified us that the next announcement will be made in "early mid-March," but dealers are also feeling perplexed by the unexpectedly large delay.

When the 250 release was postponed from January to February in Japan, bestcarweb wrote this:

"However, the news of the postponement of the release of the Rankle 250 will hit Toyota dealers nationwide in early February. Toyota has a lot of problems such as repeated shutdowns of the factory, late delivery and large-scale recalls due to unauthorized authentication."

The delay is now late May...not sure what Unauthorized Authentication means as a robo-translation from Japanese...

 

[OGBeno]

The certification issues are due to diesel engines for LC applications. Toyoda Industries cooked the books.

 

[M1911]

There is some discussion on tacoma world about it. This post has some undercarriage pictures. I'm not sure the thread is worth the read though...

It’s not clear to me from the pictures what broke. Halfshaft? CV joint?

 

[LCQ]

It’s not clear to me from the pictures what broke. Halfshaft? CV joint?

Those pics were in TFL's original video. I think they included them because they didn't see anything obviously broken in them. But, that's just my speculation.

 

[Jstawgn]

The 2 pinion strikea again or actually the ADD actuator not fully engaging and cause the spline to strip. Based on no noise, I am betting more on ADD spline stripped.

ADD been problematic in last few generations.

 

[Rednexus]

Another reason while AWD is awesome . I'd honestly have a hard time going pack to a part-time system, fuel economy be damned. Too many years driving Subarus and now my AWD GX.

It's a lot more complexity to have something disconnect/reconnect vs. just leaving it engaged all of the time - there is always the "wear and tear" argument, but it's not like the AWD 100/120/150/200s really wear out any front end components, ever.

 

[Jetboy]

The 2 pinion strikea again or actually the ADD actuator not fully engaging and cause the spline to strip. Based on no noise, I am betting more on ADD spline stripped.

ADD been problematic in last few generations.

Is this an issue in the last gen Taco? It's not a common issue in the 4runner. I haven't heard of many or any in the 5th gen. I've never had a hiccup on my 4runners or Tundras. But, I haven't had a Tacoma in a long time. I know it could be an issue on the first gen Tacomas, but haven't heard of anything about that issue since then. If it's the same slide collar mechanism, that's disappointing. This is a very old tried and true system. It's the same thing that engages 4hi in the awd models, just on a shaft in the transfer case vs a shaft in the differential housing.

The issue for me is quality control. Seems to be plaguing Toyota right now. What seems common is quality control from third party vendors not being good and Toyota failing to properly monitor the quality. The shift mechanism looks new, but the idea is the same. The collar should have a two way communication back to the ECU that tells it when it's fully engaged. So it's probably an issue with the calibration of that feedback signal. It didn't fully engage but told the ECU that it was.

Not great. Should be fixable if it's that issue. But I'd love to see more information on what really happened. If the splines failed - that's a big deal. If the collar split - big issue. If it's the actuator that needs to be calibrated differently, should be easy enough to fix.

 

[Jstawgn]

Is this an issue in the last gen Taco? It's not a common issue in the 4runner. I haven't heard of many or any in the 5th gen. I've never had a hiccup on my 4runners or Tundras. But, I haven't had a Tacoma in a long time. I know it could be an issue on the first gen Tacomas, but haven't heard of anything about that issue since then. If it's the same slide collar mechanism, that's disappointing. This is a very old tried and true system. It's the same thing that engages 4hi in the awd models, just on a shaft in the transfer case vs a shaft in the differential housing.

The issue for me is quality control. Seems to be plaguing Toyota right now. What seems common is quality control from third party vendors not being good and Toyota failing to properly monitor the quality. The shift mechanism looks new, but the idea is the same. The collar should have a two way communication back to the ECU that tells it when it's fully engaged. So it's probably an issue with the calibration of that feedback signal. It didn't fully engage but told the ECU that it was.

Not great. Should be fixable if it's that issue. But I'd love to see more information on what really happened. If the splines failed - that's a big deal. If the collar split - big issue. If it's the actuator that needs to be calibrated differently, should be easy enough to fix.

On Tacoma it's the actuator that usually the problem . It's the same as elocker motor. It's prone to seized up due to no use or water getting into it. Also when not clocked properly it would only shift partially and can cause the side gear to only engage partially. This then would reduce the spline strength quite considerably.

 

[stridertexas]

As a current Defender owner, watching their first off road video where they aired down the 20” tires on the Defender and then slammed the wheel straight into a rock and blamed the manufacturer, was really hard to watch.

The factory manual says to not air down the tires as the traction control system in the LRs are very advanced and built around the stock wheels.

Now TFL is doing series of videos showing old LRs and how “mechanically reliable they can actually be.” Sure seems like damage control with LR after their bad review.

 

[Jeremy556]

The factory manual says to not air down the tires as the traction control system in the LRs are very advanced and built around the stock wheels.

Which is a load of s*** from LR. They should just admit their wheels and tires are only meant for the street. No amount of traction control or even lockers can ever take the place of vastly increased mechanical grip provided by aired down tires.