Kevin A Jones

I agree that the Corvette Forums represents a relatively small sampling of all owners, however when you add U-tube and the social Media platforms as stated in my above it grows substantially.
You say huge, how many of the approx. 146,000 C8s built to date do you believe have had DCT issues?

smithers

Every enthusiast sort of car I have ever bought new had a matching forum for it that I would read from time to time. All of these forums made the cars sound like an absolute basket case. Just nothing but problems on top of problems. Seemingly lots of people who were loud and proud that they lemon law'd their POS and it was the worst car ever.

Funny enough, I never had a problem with any of these cars. So I'm really not worried about it with my C8 Z06. Someday my luck will probably run out and I'll buy a problem car, but worrying about it isn't going to change whatever may happen.

When it comes down to it, no one outside of GM has a clue how widespread any of these issues truly are. People tend to assume its whatever they have decided they want the answer to be (some people are just naturally positive, while others are just naturally negative). None of us have a clue what the true percentage is.

Vetteman Jack

If you frequent the forum and other social media sources, I can see where the transmission reliability would be a concern. But there are a huge amount of owners that have no problems and do not post that for others to read.

BetaSteve

In Porsche PDK’s early years they did the same thing - brought every faulty PDK back to the factory for inspection. They’ve certainly had their fair share of high exposure problems:
catastrophic IMS failures that could happen in 996 and 997.1 versions of the 911
complete engine failures in certain era GT3 911 models that called for voluntary complete engine replacement
an ongoing - 1.5+ years now - stop drive order on the $1m + Carrera
and more
Yet they still sell more than they can supply of most every model and I don’t think anyone is worried about the PDK anymore
The Tremec TR-9080 faults too will be overcome, but keep talking them up folks, makes the day come sooner I can justify the outlay for a used C8
Whatever happened to the early C8 idea that Corvette should become its own brand thereby able to offer a level of service justifying the price of the car anyway?

sowega

I didn’t expect this thread to prove me right so quickly

tadda

gdb069

Its just a bit odd that GM does not document the problem but just sends another transmission and say "try this one". sure other cars have problems but my experience with Mercedes and Honda was when a problem was detected, it was analyzed and a solution was provided. MB had an oil consumption problem and identified which serial numbers of the same model, same year were affected and determined it was a cylinder component change. (My SLK had no problem but a friends did).

On the other hand, my C8 was in Chevrolet Service for a while awaiting a new transmission, but or some reason it did not bother me at all. I was offered a coutesy car but have other cars so waited a few weeks. Maybe the difference is: in Canada our summer toys go inti storage for 4-6 moths every years so we are not put off by a wait.

winders

The Porsche dealer still replaces the entire PDK when there is a problem with it. Some shops have figured out how to do a few component repairs out of warranty.

Dan Hintz

The conspiracy theorist in me...

Marketing Guy 1: This part keeps failing, and we're losing customer confidence in the design
Marketing Guy 2: We need a way to improve that confidence without spending a lot of money
MG1: The part really is broken, so what do you suggest?
MG2: If we give it a new part number, people will believe we've identified and resolved the problem.
MG1: But new numbers are only assigned to parts that have been modified.
MG2: Add a bit of white to the paint.
MG1: Ah, so you mean it's dark gray now instead of completely black. Done!

And that, folks, is how you end up with a modified valve body with a new part number

sowega

That is definitely a possibility - I know I've taken part in equally obtuse "messaging" & "optics" decisions while holding my nose, haha

EvanD

Or change vendor or just for no other reason start a new p/n, hey it’s leap year!

hamta

I HIGHLY doubt this will occur in today's timeframe. Remember, GM just got caught doing this with the ignition switch issue. Which resulted in many lawsuits, millions in damage awards, and I believe, several GM executives were found guilty of criminal charges. I believe that this thread has gone off track in a major way with these conspiracy theories...JMHO

Andybump

What is are the new and old part numbers for that? Which valve body was it (there are two). How did you discover that?

sowega

During the 6 weeks of waiting for a valve body for my car, the dealership operations manager mentioned that I was getting the new, just-released part number. The repair order details with all the part numbers, times, etc are in my "Joined the transmission issue club" thread, but here are the valve body part numbers:

new 24059060
old 24045740

Dan Hintz

hamta

Absolutely not!

vetteLT193

Sorry, but GM leverages stats as MAJOR part of what makes them actually fix things and unfortunately for Corvette owners we have a very high percentage of garage queens that never get driven. My Mom's C8 doesn't have a DCT problem. It's got under 1000 miles. My brother is on his 4th 8 speed auto in his C7. He actually drives the thing (when it's not at the dealer getting fixed). GM extended his warranty on the transmission it's so bad. And he's **** about maintenance and taking care of his stuff and owns a bunch of other vettes all with original transmissions so it isn't the driver.

So if your 5% failure number is correct my brother's odds are 0.00000625 at having his issues (1 in 160,000). I think it's reasonable to say that 5% is low, and also it's overblown online... but the truth lies somewhere in the middle.

Andybump

I think 5% is high - 5 of every 100 or 1 out of every 20 cars built. It that applied to the C8 DCT your odds would be 1 out of 20. But it did not. That number above was mentioned in the context of C7 - not the C8.

"all said and done reports state that less than 5% of C7 A8s experience this issue."