Enough Already! Your Truck's T, HP and RPM Explained

Toyota announced publicly that the new tune will increase the usable torque range.

I got the tune, and it made a big difference especially when going up hills and mountains. I noticed a change when immediately left the parking lot after the deal installed the new tune.

I would have to frantically downshift to go up hills and mountains depending on the the grade. On my normal commutes, I would have to downshift excessively in my opinion. Now, I don't downshift at all. It has been a permanent difference.

I have to give credit to Toyota for fixing that issue.

 

Been meaning to get that TSB Tune whenever I get some free time, the increased driveability sounds nice.

 

What is the TSB tune? Is this for MTs only? Not sure where the conversation turned to MTs but the AT lacks in keeping the truck in the revs where is makes any power at all. So a factory tune to fix it would be great instead of always having to push ECT.

 

"Shifted" to MTs 1 page back. The drive-ability mentioned though is in reference to TSB 0058-18, rev 1 which states that it's for ATs but references both AT an MT updates being available in the calibration info. It's an absolute crap shoot if the dealership you go to will apply the update (I'm now up to 3 dealers that won't do it), but apparently once the update is applied, the drive-ability has been labeled anywhere from "much better" to "night and day difference" for the MT.

https://www.tacomaworld.com/threads/list-of-t-sbs-etc.562671/

 

I want to like this post a million times over...from a mechanic's point of view...you are spot on my friend..

 

You will definitely notice the difference over 04B12.
Toyota improved their calibration for a reason, and it's obvious (at least on the M/T).

 

I always drive in S mode because I dislike the automatic transmission. I prefer to gas through 1st gear through an intersection from a red light then to be in 3rd by the time I've gotten through it...MPG's can suck it haha

 

Funny how there is a tune for all the “complainers”, must be an issue.

 

This could possibly be the biggest crock of shit I have ever read in regards to powertrain use in a truck platform, especially for off road.

Before Toyota started making trucks to appease the mall crawler crowds (5 foot beds, automatic transmissions a plenty) these trucks were considered one of the best in class for toting cargo, towing medium weight trailers and off road all of which benefit greatly from BOTTOM END power! Even with a GVW of over 6,000 pounds loaded, my truck only occasionally sees OVER 3,800 rpms. So I am not sure if you know this or not, but spun rod bearings generally occur for one of two reasons, 1.Bad oiling or poor oil quality. 2. Higher than average use of high RPMS.

I use my trucks specifically for paid use meaning I get paid to go off road to the tune of several thousand miles per year and where I go, giant trucks like Tundras are in no way an option. If it where not for the god forsaken frame rot devastating my amazing 2005, I would not even consider the Gen-3 but with OVtune as an option for it, I simply have to. It's not that I don't like the Gen-3, I have done 4 test drives now, it is just the torque curve and overall bottom end power on my current truck is on another planet compared to the Gen-3. My wife test drove it and then my truck last night, she is also very much an engaged driver and said that even if we get a Gen-3 and it looks like we have to, we need to keep our current truck and at some point get another frame under it when time permits.

I'm looking forward to getting a Gen-3 this Fall and doing OVtune and the suspension right out of the gate. But make no mistake, for what Toyota is famous for in the truck / off road genre, the BS you spew above is exactly that and people need to manage their expectations of this 3.5L accordingly. I sure as heck will be.

 

Lol. You speak of ONE APPLICATION... OFF ROAD. I could give two shits how many miles you go off road. You are an anomaly. The other 249,999 people who buy this truck yearly go 99% of their miles on the highway. I go off road more than most but I doubt I reach 500 miles a year in the dirt. That means I go 39,500 miles on the road.

Please tell me where my post is bullshit... except you must speak fact, not opinion. My post is fact so just tell me where my mistakes are and I will gladly fix it... but remember it is not an opinion post, it's a fact post.

You also maybe need to go learn some things about design. If you do, you will learn RPM is just a number as long as the engine is operating within stated design parameters. This is not a 22R engine lol.

After reading your post again you would be better served if you go buy an ICON FJ.
Or, stick a frame under yours and pay that company $25K to change it to diesel. That way, you have a good frame and tons of torque in your old truck.
I doubt you would break one of those but quality costs. If you want that level of quality just drop the coin required, otherwise STFU.
Have fun and be careful.

 

I don't mean to sound negative, but I've talked to a Toyota Dealership Garage mechanic and he said that the 3rd gen engine was designed specifically for the 8-speed transmission. I am a former 3rd gen owner with approx 7K miles on it, and it was a miserable 7K miles coming from 190K driven on a 2nd gen 2005 taco. My opinion is that the engine was designed for 8 gears, not 6, and it will never be optimal or ideal. I can drive up Pennsylvania mountain roads with my 2005 tacoma in highest gear and RPM's at 2K-2.5K and go well over 70 mph! UP HILL! And even with a light trailer load! The 3rd gen could not do this same thing even in 4th gear!!!! ARE YOU KIDDING ME TOYOTA ?

 

The Transmission in the 2nd gems were geared lower for higher RPMs. They were able to make more power thus.

 

Just get a MT, problem solved

 

You just keep on believing man. People always listen to people who think the same as them.

 

Toyota updated their calibrations for a reason. Nobody on TW knows for sure how much feedback that took, but I'm guessing it wasn't insignificant.
I updated to 04B13 M/T OEM calibration when it "became available", and can tell you first hand it made a considerable difference in driveability over factory stock (04B10 in my case).

 

Hello,

I’ve been reading up on what is believed to be an issue with the transmission hunting for a gear on the freeway. I have owned Toyota trucks since 1986. I also have a 2013 Tacoma and really love it. I really like everything about my 2019 TRD TACOMA.

Okay my question is I’m assuming my new Tacoma must have all TSB done at the factory? Besides calling the dealer is there a way to look at any of this?

 

All revisions are done at the plant. TSBs may or may not be done, depending on if the vehicle shows the TSB symptom. If it has no problem, they don't fix it. The dealer has no idea what was done to the vehicle before it was delivered to them.

 

Well, the dealer could tell by the ECM calibration ID of the new vehicle if they could be convinced to read it with their scan tools. It would be incumbent upon the prospective buyer to know what the cal ID means with respect to upgrades/fixes etc. For instance, a used 2016/17 Manual trans truck with a cal ID ending in 04B13 has the latest software - and you can find out what TSBs that encompasses right here on TW.
What is not clear, is what is included when Toyota releases a new M/Y (ie 2019) with a completely new/different cal ID. We sometimes assume that certain fixes were included, but there's no way to know for sure except driver feedback or in depth analysis from a tuner such as OVtune.

 

My VIN was on the list for the TSB and the dealer wanted to keep my truck for 2 days to verify the problem... Needless to say I still haven't gotten the TSB...