OV Tune -2GR-FKS failure?

Seems like an alarming amount of 2GR-FKS are crapping out. Some people on here speculate this could be in part due to auto tranny erratic shifting and being in higher gear than necessary - wondering opinions on this. Mine has had no issues like many people on here, but stills seems way too many blow ups for Tacoma standards popping up on here.

Anyone know where to get the tune done in MA?

 

Compared to your 1GR 4.0 sure seems like it could be.

 

If running the engine 300-400 rpm more than “normal” is causing them to blow up, it isn’t the tune. There’s a different problem.
I personally don’t think there is a problem, we just hear more about the “few” problems.

 

Agree, wonder if it was just a bad batch. Seems it’s mostly 16’s/17’s shitting the bed

 

Its easy to get caught up thinking there is possibly some design issue in a engine when seeing failures in trucks. You have to remind yourself that you are getting a small focused sample on an internet forum, where in general, people only go to when they have an issue. Toyota has sold on average 200-250k of these truck each year since 2016. Seeing a handful of engine failure posts on here doesnt make me concerned of some widespread issue.

 

I’ve been at the dealer since before the 3rd gen has been a thing. Still 0 failures. Tons of cover leaks though.
The forums will make things seem more common since A. More people may be tougher on their trucks, and B. Others may join the forum after their engine fails to ask questions, etc


Hell we’ve only had 2 transmissions fail on them so far.

 

What I’m saying is people think the tune could prevent such blows ups, to eliminate any confusion. I could see how erratic shifting could be detrimental

 

Any specific years for the front cover?

 

Doubtful.

 

It’s a mixed bag. Still doing some under warranty. But more common on 16-18, but they’re getting older too.
The engine the FKS is based off is known for timing cover leaks/seeps too.. there’s just ALOT of stuff to seal on these motors


Actually having BAD leaks is rare. It’s usually a seep that progressively gets more and more covered in oil making it look worse than it is

 

How is the success rate for this repair?

 

I’ve yet to have one come back after the repair. We’re more liberal with the application of sealant at key points (mainly where the head block and cover meet) than the factory.

 

Running the engine at higher rpm is better for it if it needs to do so to maintain speed. High rpm rarely “hurts” engines. More than likely blown motors are from unlucky manufacturing problems. Defects happen.

I see you’re comparing the 3.5L reliability to the reliability of the 4.0L. I’d advise to go to google and search “4.0 blown motor site:www.tacomaworld.com” and just browse the results. There are very low percentages of failures of either of
them.

 

I’m sure it can be a great engine, but 3.5 owners can’t deny the 4.0 is wayyyy more reliable

 

The shifting has had essentially zero impact on these motors, you’re reading to things that don’t exist. We have a dedicated thread to engine failures and it’s not even half a percent of people in Tacomaworld and even less in the real world. Some of these engines have failed from known causes.

Disagree. Without empirical evidence you aren’t convincing anyone.

 

No one on here has ever heard of a 4.0 blowing up like the 3.5s

 

I’ve replaced more 4.0s than I have the older 2gr-fe. But the numbers I can count on 1 hand. They’re fine engines. Just a lot more CAN go wrong technically

 

https://www.tacomaworld.com/forums/north-east.38/

 

Read the edit on my post and search what I suggested. Have you really ever looked for blown 4.0s? If you only hang out in the 3G section, you’re never gonna see them.

 

4.0s fail all the time, you’re welcome to be biased and also welcome to be wrong.