123vette456

Does a 2019 c7 stingray 1lt A8 need a AFM disabler or have the Torque Converter problems been solved on 2019 models?

SilverGhost

The 2019 c7 ZR-1 solved the torque converter problem, it doesn't have AFM. if you have a different model C7, you may wish to purchase an AFM disabler, 'cause your model continues to be blessed (plagued?) by the AFM.

Red C8 of Jax

A POLL on this forum showed the majority of TC problems were with the 2015 and 2016 A8's and very few problems with newer years.

bjones7131

Just read a previous post indicating Tag said the TC is still the same even though the part number is different. I still see post of guys have TC problems on the newer models so I will be getting a range device even though I drive in Manual 95% of time.

VNAMVET

Just a chime in, my 2017 Z-51 still lhas a slight lurche on downshift from second to first .

At 2500 miles the downshift issue arose with serious 2nd to 1st banging into gear. I ordered and installed a Range and it lessened the bump from 2nd to 1st, but it's still felt.

Just dealing with, it unless it gets worse. Have seen way too many pics of trannys apart and not sure if I want to be subjected to my car having worse issues when put back together.

23/C8Z

According to engineer at Carlisle they changed the formula for the fluid. That was causing the issues. Converters effected were or will be replaced and that's what the triple flush tsb is for. To replace the old formula with the new.

engineer also said it's common for mfr to change formulas several times during the life cycle of an auto trans. Seems plausible. Think back to how many different dexrons and motorcraft etc trans formulas there are. So 17 would be the last of any even made it out with that old formula in it.

Rebel Yell

If you're not having any problems you will probably be fine. Of course if you want to keep the engine out of V4 mode the Range unit is the way to go.

subieworx

So the flare on shifts is not supposed to be there? Hah...Had no idea. Seems like all GM trans have it.

orca1946

So my 2019 GS should be fine!!

corvetteflier

18 and 19s are the same car. My '18 has 2700 miles on it, not the slightest problem. Haven't really heard much about the problem on later '17s forward. You should be fine.

bajajon

GM could not fix a wire on headlights for the run of c 6 good luck on tc that why I got a 2018 m7

Mike Campbell

Well if you listen to all the posts on this forum you'd be better off saving your money and get a bicycle instead. But there are thousands out there who are very happy with their Corvettes but seems you only read about the problems. Just saying, it is what it is.

bjones7131

Agree, sometimes I think I would be better off not reading the forum but I like info. Your theory is good but if you have a problem corvette it takes on a whole different meaning. Cheers

Johnp94

Get the range device and you should be better off. 2019 has the same torque converter. Only difference is the fluid. I bought my 2014 Z51 in September of 2017. It has the older Automatic 6 speed. I have $61,000 cash into my car. That is enough to buy a use ZO6 or a new 1lt GS. No thanks, I don’t want torque converter issues and I don’t want to worryabout it. Get the range, cost $200 and will probably prolong the life of your drive train. If I spent $50,000 - $90,000 on a car I would be in denial of being screwed also.

nikovette

I have a 2017 Grand Sport with 4000 miles that has developed the problem. The dealer's transmission tech went with me for a drive and confirmed it within half a mile. It's going in next Tuesday to have the torque converter replaced.

kennyjames21

Do you use the range device Niko?

Patman

The 18s and 19s aren't identical, we've already heard on here that the differential in the 2019s are stronger, as they beefed it up for the ZR1 and decided to use it on all 2019s. So there could be a few other changes to the 2019s that we still don't know about yet.

nikovette

I did not.

kennyjames21

Do you do a lot of highway driving where the v4 would kick in?

kennyjames21

Here is his post on the TC redesigns:

"Thanks for the question, Maxie2U.

While four part numbers since launch may seem like a lot of design changes to a very important part of the car, it is not. The part numbers represent the initial release and 3 subsequent minor design tweaks. We change part numbers virtually every time we make a product change to enable us to track it through our supply, manufacturing and logistics systems. Many components on the car have a much larger design change history than the torque converter. None of these changes affect the customer experience or the performance of the torque converter. All of the part numbers are back-serviceable and fully interchangeable on any 8-speed Corvette with no other hardware, software or calibration changes required. All three changes were made at Manufacturing's request to make the torque converter easier to make. One change was a geometry tweak to the drive plate to improve the way steel chips resulting from machining operations fall away from the part. It essentially makes it easier to keep the assembly free of debris. Another change was to an internal spline on the stator. We added a chamfer or lead-in to help the male and female parts naturally align as the mating pieces come together. The final item is similar in nature. We modified the geometry of an internal seal to let the interfacing component self-align radially as it is assembled.

I'm guessing the concern behind the question is that the performance of the torque converters is different and everyone wants to know if they have or are getting the "best" one. Please let me assure you that from a customer experience point of view, there is absolutely no difference."

If you read that you see they did make design changes, specifically to stop debris during manufacturing from ending up inside the torque converter. These changes were obviously to address issues with the converter despite claims they were just usual design tweaks. So while the base design of the versions are the same, they are different in how they are/were manufactured with the newest version least likely to have manufacturing debris in them, which is nice....