2015 C7 A8 Issues
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2015 C7 A8 Issues
This is a story about my little corvette having Transmission issues since i bought it. Bought the car used so I cant lemon the car... I had my torque converter changed because of shutter issues, then my Torque tube replaced because of vibrations. had my diff changed because of the warble noise, I also had dead lifters, and a spun bearing... rebuilt engine...
Well this is my issue at the moment, whenever I'm crossing an intersection at low speeds the car feels like it slips, when I come to a stop the trans kind of clunks? Then when going down, or up hill I had a jerk when shifting. I had the TCM re flashed by the dealer for the adaptive learning and nothing changed. What should I do next if the dealer just says there is nothing wrong with the car? I had read a Bulletin where it said that if the adaptive learning did not work they would change out a part of the trans. Can anyone link me PLEASE IM DESPERATE!
Well this is my issue at the moment, whenever I'm crossing an intersection at low speeds the car feels like it slips, when I come to a stop the trans kind of clunks? Then when going down, or up hill I had a jerk when shifting. I had the TCM re flashed by the dealer for the adaptive learning and nothing changed. What should I do next if the dealer just says there is nothing wrong with the car? I had read a Bulletin where it said that if the adaptive learning did not work they would change out a part of the trans. Can anyone link me PLEASE IM DESPERATE!
Melting Slicks
Joined: Sep 2009
Posts: 2,414
Likes: 214
From: Sarasota Florida
If I were you, I’d do one of two things: 1. Buy an extended warranty because that car sounds like a real lemon, or 2. Get rid of it because that car sounds like a real lemon. Owning a car like that really sours the ownership experience.
Le Mans Master
Joined: Jan 2006
Posts: 6,800
Likes: 2,653
From: Down south in Dixie
GM has recommended a "Triple Flush" for some of the A8 transmissions to help with problems like yours. That may help. I do agree with my friend SRQStingray, if you plan on keeping the car an extended warranty may be your friend.
Here's a couple threads that speak to the triple flush. You can do a search of this forum section for quite a more. Just put "triple flush" in the search box. Good luck.
https://www.corvetteforum.com/forums...lush-work.html
https://www.corvetteforum.com/forums...on-issues.html
Here's a couple threads that speak to the triple flush. You can do a search of this forum section for quite a more. Just put "triple flush" in the search box. Good luck.
https://www.corvetteforum.com/forums...lush-work.html
https://www.corvetteforum.com/forums...on-issues.html
Le Mans Master
Joined: Jan 2006
Posts: 6,800
Likes: 2,653
From: Down south in Dixie
Racer
Joined: Nov 2004
Posts: 489
Likes: 174
Your extended warranty should pay for the repair at an independent transmission shop. Not AAMCO but a real legit place that rebuilds transmissions. Take it there not to Chevrolet and see what they say. May I ask did your motor blow AFTER the tube was replaced im going to guess yes. This is a very common problem with dealers wrecking engines by not installing the tube properly.
Last edited by C5Driver; Jun 11, 2018 at 01:35 PM.
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Thread Starter
Navigator
Joined: Jan 2017
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The next big issue about trading in.. Im upside down. Owe 45.. Trade in is 33-35 MAX 
Dont want to trade in and pay more on something stupid.. or pay the 10k+ im upside down when I can just mod the car? idk what to do.. Can someone with more experience in life and with the C7 GUIDE ME
Dont want to trade in and pay more on something stupid.. or pay the 10k+ im upside down when I can just mod the car? idk what to do.. Can someone with more experience in life and with the C7 GUIDE ME
Burning Brakes
Joined: Jun 2014
Posts: 981
Likes: 157
What's the point of modding a car with a messed up transmission/torque converter? That's just more money down the drain, and it might void your extended warranty, too.
Sports cars are money pits at best. Never spend more on one, especially a used one, than you can afford (financially and emotionally) to to just throw away.
Ditch it, eat the loss, move on.
Sports cars are money pits at best. Never spend more on one, especially a used one, than you can afford (financially and emotionally) to to just throw away.
Ditch it, eat the loss, move on.
Race Director
Joined: Dec 2002
Posts: 10,461
Likes: 1,149
From: Wayne Township WI
Race Director
Joined: Dec 2002
Posts: 10,461
Likes: 1,149
From: Wayne Township WI
The next big issue about trading in.. Im upside down. Owe 45.. Trade in is 33-35 MAX Dont want to trade in and pay more on something stupid.. or pay the 10k+ im upside down when I can just mod the car? idk what to do.. Can someone with more experience in life and with the C7 GUIDE ME
Dont want to trade in and pay more on something stupid.. or pay the 10k+ im upside down when I can just mod the car? idk what to do.. Can someone with more experience in life and with the C7 GUIDE ME'WelderGuy' just did & I agree.
And FWIW Alonso, this very thing happened to me although w/ a C3.
At 18 just had to own a 2 y/o Corvette, was an awful lot of fun 'til it wasn't.
Ended-up selling to a dealer for wholesale, lost $3.5K when $3.5K was a LOT. Had to pay down debt next couple years w/ nothing to show for it.
A bitter lesson, one I've not forgotten to this day many years later. 'Experience' almost always has a price.
Don't know what your APR is, but, is there any possibility you refinance @ a lower rate w/ another outfit?
G/L, this too will pass & believe it or not you'll be a whole lot wiser.
PS, BTW since you've an AMW if it were me I'd badger dealer until they were forced to get GM directly involved rectifying this to YOUR satisfaction.
Last edited by Landru; Jun 12, 2018 at 10:00 AM.
Thread Starter
Navigator
Joined: Jan 2017
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'WelderGuy' just did & I agree.
And FWIW Alonso, this very thing happened to me although w/ a C3.
At 18 just had to own a 2 y/o Corvette, was an awful lot of fun 'til it wasn't.
Ended-up selling to a dealer for wholesale, lost $3.5K when $3.5K was a LOT. Had to pay down debt next couple years w/ nothing to show for it.
A bitter lesson, one I've not forgotten to this day many years later. 'Experience' almost always has a price.
Don't know what your APR is, but, is there any possibility you refinance @ a lower rate w/ another outfit?
G/L, this too will pass & believe it or not you'll be a whole lot wiser.
PS, BTW since you've an AMW if it were me I'd badger dealer until they were forced to get GM directly involved rectifying this to YOUR satisfaction.
And FWIW Alonso, this very thing happened to me although w/ a C3.
At 18 just had to own a 2 y/o Corvette, was an awful lot of fun 'til it wasn't.
Ended-up selling to a dealer for wholesale, lost $3.5K when $3.5K was a LOT. Had to pay down debt next couple years w/ nothing to show for it.
A bitter lesson, one I've not forgotten to this day many years later. 'Experience' almost always has a price.
Don't know what your APR is, but, is there any possibility you refinance @ a lower rate w/ another outfit?
G/L, this too will pass & believe it or not you'll be a whole lot wiser.
PS, BTW since you've an AMW if it were me I'd badger dealer until they were forced to get GM directly involved rectifying this to YOUR satisfaction.
Race Director
Joined: Dec 2002
Posts: 10,461
Likes: 1,149
From: Wayne Township WI
Assumed APR at something higher, 1.8% is hardly ****, pretty good rate.
At 1.8% stand on it as long as it can be managed.
A good CR'g is key here --young or old-- and to be protected at all costs; hence, suggestion to refi at a lower rate. Won't help you.
Unwilling to take a hit trading warranty really comes into play, so you've some leverage. Good move, there.
From the sound of things it'll pay for itself many times over, providing you make a stink w/ dealer insisting it be made right.
Car sits at dealer until it functions as designed, no less.
That'd be my strategy, at least until warranty expires & by then 2-3 years passed. Car's paid down enough -$ substantially minimized vs selling at present.
Melting Slicks
Joined: Nov 2012
Posts: 3,163
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From: SUFFIELD CONNECTICUT
How about a hi performance GM or aftermarket torque converter and shut down AFM ? Maybe? yes? no ? I realize there would be no more warrantee, but put that aside wouldn't that help the A8 issues?
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