KrikGS

I keep hearing that but then I keep reading in just about every Camaro ZL1 review that the A10 is the same size as the current A8 so I think it's a matter of time before we see the A10 in the current C7 gen.

I think GM is being coy about the A10 fit. If they just came out and said "yes, it's an easy fit", potential buyers may hold out waiting for the A10 release which would be bad news since sales are already soft right now.

djnice

Personally I think the A8 has plenty of gears. I can't imagine having 10 gears in an engine with a broad power band. From all the stories I see, if my A8 acts up, I think I would try to trade the car before fixing it. Half the time I have traded-in my cars the dealer never test drove them.

joemessman

I really hate to read this. I'm still thinking it a a defective part issue. If GM is putting the same part in each car and an unacceptable percentage fail, which is the case, then what else could it be? I have a lot experience in manufacturing control, and this is really a red flag for a defective part in my opinion. This part, or parts should be more closely scrutinized and examined before assembly.

KrikGS

Didn't the replacement torque converters receive revised part numbers? I would think a different part# would indicate a redesign or modification of some sort. GM publicly stated that any Corvette built after 11/1/2015 should not be affected. If it is in fact my torque converter that is failing, then that's a game changer.

Red C8 of Jax

Yes, the new revised torque converters (at least mine did) did receive new part numbers. GM also changed the part # for the transmission fluid. As I have mentioned before, the dealer told me the reason the
TC's were failing was because of a bad o-ring. I noticed no problems with my transmission until around 10K miles and I have had no further problems since the new TC. If the o-ring's start to fail at around 10K miles, we are going to have failures for all of those low mileage cars (2K a year) for years to come. I am sure it took GM several months or longer to determine the problem with the A8 and while they were breaking down the transmissions for inspection, the A8 TC's with the bad o-rings continued to be built. I have one of the first A8's, a 2015 built October, 2014.

joemessman

I could go along with that. So it sounds like when the O rings were installed in production there was not a preinstallation examination of the part to ensure it wasn't out of spec. This is the third 2017 on the forum that has had a failure. So apparently they are still not checking them close enough, if indeed that if the failure point. Of course I realize that it may be something unrelated to the O ring.
I imagine that since the A8 issue has been addressed and admitted, they are hopefully fully inspecting every part before it goes to the assembly line.
The more I think about it there are so many variables that it would take a step by step verification process at assembly to ensure this doesn't occur in the future.

tjs15

Any more info on your tranny problems?

KrikGS

Haven't had a chance to take it in yet with the Holidays and all. Although the problem is definitely still there. Annoying when I'm on the Interstate for my daily commute. I'm going to at least call Stingray Chevrolet and make them aware of my issue tomorrow.

tjs15

Mine is driveable with the Range AFM Disabler and have not found a local dealer yet who seems to know much about TC replacement. I will keep driving it this way until I find the right dealer. Hope you get positive results with yours. I copy ever thread that deals with these problem to show dealers who say there are no problems

KrikGS

What year is your C7? Even if I have to have the TC replaced, I'm thinking about picking up a Range AFM disabler to disable the stupid V4 mode. Although, I've heard that they only work intermittently on the 2017's. Was hoping a firmware update would solve that but I haven't seen one yet.

obxchartercaptain

The problem with my A8 is a common one. I have a early build 2016 Z51 and when it sits overnight it takes about 5 to 8 seconds to move after I start it up in the morning and shift into gear. The fix is to take the Transmission OUT and OPEN it up and install an additional check valve/ball to prevent the fluid from draining. It is a BIG job. I am about 55 miles from Stingray Chevy and drove there to talk to them. They had about 12 Vettes in the shop with their transmission in pieces....The Service adviser wanted me to leave my car overnight(they would give me a loaner) so as to offically diagnose the problem and if it in fact was doing what I said it was ...it would take about 3 weeks to get the parts and a open mechanic to fix it. I decided not to do that and found that if I shift the car into drive then reverse it moves like it should or let it idle for about 10 seconds.....I have another 4 years to make up my mind on whether or not to have the transmission worked on. This is a problem GM KNOWS they have and they STILL haven't done anything to correct it.....It really pisses me off that a car costing 82 Grand (including Museum Delivery) has these kinds of problems.

tjs15

Mine is an early 15 model and was fine until about 9700 miles. I have a cable for the Range with a switch that I shutoff after each ride. Kills power to it so no
power drain and I have not had 1 issue with the Range.

tjs15

I agree with OBX in that I will not have mine taken apart until I find the right dealer with the right answer to the problem. Still seems that the right answer has not been found. Some people have had luck with certain procedures and for others it has come back.

Landru

Hate reading this stuff, also.
Be lucky if it were only bad part(s), parts can be replaced.
What if it's something designers simply don't understand?
If GM power div wizs don't know what to fix, it's 'unfixable'.

Isn't w/o precedent, all vehicle makers have had clinkers (think Cad 4-6-8 etc) and the A8 may be one in the making...unless, A8 issue(s) are first thoroughly understood there can't be a fix, permanent or otherwise.
A10?

Damned shame.
Had an opportunity to drive a '16 A8 CTS w/ turbo 4.
Blown away how precise & smooth it was, allowed the most of a fairly small engine.
Of course for the week I had it, it worked.

iclick

You are where I was about 18 months ago, to hold off until GM gets its act together with a proven fix. Today I don't hold much encouragement that progress has been made, and changing the TC will likely fix the problem for the short term but problems will recur in the future. In my case the shuddering got much worse and I had to either bite the bullet, buy a Range device, or drive the car in manual mode all the time. I chose the former, but after I get the car back I'm going to order a GS with M7 and trade my current car, which otherwise is excellent in most every way.

bjones7131

Send GM CEO an email and make some noise. I did this on the 16 stingray I had and got some attention. GM eventually bought the car back not for the A8 but another problem. These dealerships will keep putting you off insisting they have never had an issue with the A8. Joke

hope2

Gotta say, brief moment I wanted A8, but kept my 7 speed and bought automatic C6. Glad.

Larry/car

Remember the automatic goes into V4 automatically unless manual shifting is selected. With all the automatic transmission problems you guys have, I am surprised anyone considers an automatic.

bjones7131

I went back with another A8 thinking they had fixed the problem. I onl had 4k on my 16 and tranny and tc was fine and only have 250 miles on my GS A8. If this GS doesn't pan out i will buy a mustang.

iclick

Any updates?