C8 problems
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
Most exotics have carbon-ceramic rotors with holes in them. I guess their pads are old-school/non-EPA compliant? It appears that the C8 Z06 will have rotors with holes in them, based upon photos I've seen...
Intermediate
Joined: Aug 2017
Posts: 43
Likes: 14
From: South Eastern USA
[QUOTE=Warp Ten;1604772187]The Spring Mountain C8 Owners School has a lot of experience ... They have not had any DTC, valve spring or AMP failure in the 2+ years of working with C8's..
/QUOTE]
@Warp Ten Do you have access to written service reports on C8s used at Spring Mountain to document your statements here? How many different C8s have been used at Spring Mountain over the years?
/QUOTE]
@Warp Ten Do you have access to written service reports on C8s used at Spring Mountain to document your statements here? How many different C8s have been used at Spring Mountain over the years?
Drifting
Joined: Sep 2020
Posts: 1,423
Likes: 639
From: Columbia SC
No I don't have written reports for not having problems. I asked the Chief Instructor, multiple instructors and 1 maintenance guy. All of them had heard of the DCT, Valve spring and Amp failures, but to date they have not experienced any of those. They all said the biggest issue is the electrical system involved with the display. The display goes blank and needs to be replaced, I witness this issue in my car, it would not accept "OK" when going into PRD mode. Like the Screen or program froze???
They change engine oil at 500 miles and flush DCT. Another engine oil change at 1600 miles, just before allowing the car to go on track.
The DCT filter is also change at 1600 miles. Then they add the 2L of DCT fluid, Change to high temp brake fluid and put the track alignment into the car.
Your right, I abused the car every lap.. 100% throttle when not on the brake, 90% brake at each corner with 1+g in each corner... Tires were talking to me, letting me know they were being abused too. OMG it was so fun!!!!
They change engine oil at 500 miles and flush DCT. Another engine oil change at 1600 miles, just before allowing the car to go on track.
The DCT filter is also change at 1600 miles. Then they add the 2L of DCT fluid, Change to high temp brake fluid and put the track alignment into the car.
Your right, I abused the car every lap.. 100% throttle when not on the brake, 90% brake at each corner with 1+g in each corner... Tires were talking to me, letting me know they were being abused too. OMG it was so fun!!!!
Drifting
Joined: Sep 2020
Posts: 1,423
Likes: 639
From: Columbia SC
At Spring Mountain they are booked full, that is 2 classes of 18 students. There is 1 instructor for every 3 students. If my math is right thats 36 student cars, and 6 instructor cars... 42 cars. They are running classes 7 days a week.... Now that is just for the C8 Drivers School. They have level 1, 2 and 3 courses that are for folks with lots of track experience. Not sure of the numbers there.
I was told they have about 120 C8 Z51, some HTC, but mostly coupes, to maintain this effort. Each car is inspected after each class to look for brakes, tires or other consumable parts needing replacement. Once they reach ~8000 miles they are sold to a dealership in Vegas. These cars are sold with no power train warranty.
I was told they have about 120 C8 Z51, some HTC, but mostly coupes, to maintain this effort. Each car is inspected after each class to look for brakes, tires or other consumable parts needing replacement. Once they reach ~8000 miles they are sold to a dealership in Vegas. These cars are sold with no power train warranty.
Heel & Toe
Joined: Nov 2008
Posts: 19
Likes: 5
From: Springboro Ohio
Took delivery of my '22 on 12-15-21, had in my possession all of 45 minutes before returning to dealer. Severe engine misfire at slight acceleration around 1500 RPM. Was told fuel injector error on cylinder #6. Dealer drove for 2 days, couldn't get car to replicate problem, said whatever it was had cleared and car was operating properly. Went back to dealership and asked tech to accompany me on a drive, didn't get 200 yards down the road, same problem with misfire. Dealer ordered replacement fuel injector, out of stock and back-ordered with no information on lead time. Dealer gave me my money back, no issues, have first right of refusal to re-purchase once fuel injectors come available and car is 100% repaired.
Spoke to dealership approx. 4 weeks ago, was told a replacement injector had been allocated for the car. As of today, still waiting on part. Car has been sitting at dealership since I returned it on 12-15-21. Losing interest in purchasing car once it is repaired, if it is repaired. Likely my last GM purchase as it seems everything they make is a POS.
Safety Car
Joined: Dec 1999
Posts: 4,718
Likes: 1,460
From: Virginia Beach, VA & Port Charlotte, FL
As I recall the reasoning was given by Tadge when it was noticed that the preproduction 2020 cars didn't have slots.
Advanced
Joined: Sep 2020
Posts: 63
Likes: 52
Update on fuel injector..........
Spoke to dealership approx. 4 weeks ago, was told a replacement injector had been allocated for the car. As of today, still waiting on part. Car has been sitting at dealership since I returned it on 12-15-21. Losing interest in purchasing car once it is repaired, if it is repaired. Likely my last GM purchase as it seems everything they make is a POS.
Spoke to dealership approx. 4 weeks ago, was told a replacement injector had been allocated for the car. As of today, still waiting on part. Car has been sitting at dealership since I returned it on 12-15-21. Losing interest in purchasing car once it is repaired, if it is repaired. Likely my last GM purchase as it seems everything they make is a POS.
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Instructor
Joined: Feb 2009
Posts: 217
Likes: 92
From: BRIGHTWATERS NY
Sorry to hear the news...that is very frustrating...hang in there..I just picked up my 2022 2LT Z51 from Macmulkin in New Hampshire yesterday and drove it down to Long Island (about 150 miles)...Had the tech put it up on the rack before we left and I looked the car over pretty thoroughly...no leaks...had no problems...car performed flawlessly ....and it ran like a champ...I couldnt believe how smooth the car drives in touring mode ..and how well it corners on off ramps...the mag ride option was worth the extra $1900....We were told that bowling Green has ramped up production again and Macmulkin is now delivering over 100 cars per month which is great news for everyone who has been waiting for a c8....it took a year to get the car...and was worth the wait
Le Mans Master
Joined: Sep 2017
Posts: 5,767
Likes: 2,967
From: Rural NW Georgia. GO DAWGS!
2024 C8 of the Year Finalist - Unmodified
Burning Brakes
Joined: Jan 2018
Posts: 964
Likes: 463
From: Newport Beach Kalifornia
When I went to Spring Mountain in 2015 my wife had a conversation with an instructor about who buys these cars after they finish with them. At the time if I remember correctly they were loaded onto a truck and taken to a dealer in SoCal. He told my wife that even with the service they do on the cars there every day and after every school session plus the major services at earlier intervals than GM calls for, there was absolutely no way he would buy one of them. I happened to have my ride along with this instructor at that school the next day and told him he had met my wife. I purposefully didn't ask him about their conversation but asked him about his racing experience. He had driven for several IMSA teams before he decided to spend more time with his family and work at Spring Mountain - his way of getting the best of both worlds. I think he knew what he was talking about.
Back on topic (kind of): No probs on the C8!
Heel & Toe
Joined: Nov 2008
Posts: 19
Likes: 5
From: Springboro Ohio
Another fuel injector update:
Spoke to dealership this past Saturday, the fuel injector allocation has been taken back by GM. No word on when replacement part will be available. Chevy / GM has screwed the pooch on this one. Dealership obviously not making an effort, car has been sitting in their shop since 12-15-21. Very disappointing. Will go try and find a Shelby GT500. Done with GM. Hope everyone enjoys and has better luck with their new C8's than I did!
Spoke to dealership this past Saturday, the fuel injector allocation has been taken back by GM. No word on when replacement part will be available. Chevy / GM has screwed the pooch on this one. Dealership obviously not making an effort, car has been sitting in their shop since 12-15-21. Very disappointing. Will go try and find a Shelby GT500. Done with GM. Hope everyone enjoys and has better luck with their new C8's than I did!
Le Mans Master
Joined: Sep 2012
Posts: 7,146
Likes: 1,940
From: Hagerstown MD
St. Jude Donor '15-'16,'18
Another fuel injector update:
Spoke to dealership this past Saturday, the fuel injector allocation has been taken back by GM. No word on when replacement part will be available. Chevy / GM has screwed the pooch on this one. Dealership obviously not making an effort, car has been sitting in their shop since 12-15-21. Very disappointing. Will go try and find a Shelby GT500. Done with GM. Hope everyone enjoys and has better luck with their new C8's than I did!
Spoke to dealership this past Saturday, the fuel injector allocation has been taken back by GM. No word on when replacement part will be available. Chevy / GM has screwed the pooch on this one. Dealership obviously not making an effort, car has been sitting in their shop since 12-15-21. Very disappointing. Will go try and find a Shelby GT500. Done with GM. Hope everyone enjoys and has better luck with their new C8's than I did!
Melting Slicks
Joined: Dec 2020
Posts: 3,485
Likes: 3,312
Another fuel injector update:
Spoke to dealership this past Saturday, the fuel injector allocation has been taken back by GM. No word on when replacement part will be available. Chevy / GM has screwed the pooch on this one. Dealership obviously not making an effort, car has been sitting in their shop since 12-15-21. Very disappointing. Will go try and find a Shelby GT500. Done with GM. Hope everyone enjoys and has better luck with their new C8's than I did!
Spoke to dealership this past Saturday, the fuel injector allocation has been taken back by GM. No word on when replacement part will be available. Chevy / GM has screwed the pooch on this one. Dealership obviously not making an effort, car has been sitting in their shop since 12-15-21. Very disappointing. Will go try and find a Shelby GT500. Done with GM. Hope everyone enjoys and has better luck with their new C8's than I did!
Melting Slicks
Joined: Feb 2006
Posts: 2,261
Likes: 1,431
From: Brentwood CA
Except he has already given the car back to the dealer and gotten his money back - but has the first right to re-purchase when repaired. Could be the dealer is deliberately trying to delay repairing the car so as the OP gives up. They then repair the car and sell it with a hefty ADM. Wouldn't put it past the dealer to do this. If I were the OP I would send an email to Mary Barra as others have done in similar situations with very good results.
Le Mans Master
Joined: Sep 2017
Posts: 5,767
Likes: 2,967
From: Rural NW Georgia. GO DAWGS!
2024 C8 of the Year Finalist - Unmodified
It's pretty sad that Chevy has dealers out there that do these kinds of things and because consumers don't complain get away with it. For the first time since I can remember I own only GM vehicles and - knock on wood - they have performed flawlessly. I do have a dealership's service department that I trust with my wife's Denali and my 2500HD, but I have another one that I will take the C8 to for service - my daughter went to school with the owner of the dealership and I know the kid. They also hold a annual all-Corvette car show every May and the local Corvette club uses their service department exclusively for service.
Heel & Toe
Joined: Nov 2008
Posts: 19
Likes: 5
From: Springboro Ohio
In retrospect, maybe I f'd up in getting my money back, and maybe they would have been more diligent in pursuing a warranty replacement part. But, the heartburn I have is they're cranking these things out every day and they can't spare one injector? Is there anything special I'm missing? Do they need to be flow-matched where they have to replace all eight at once?