LT6 engine failures/problems
Race Director
Joined: Aug 2019
Posts: 12,351
Likes: 14,183
From: Central Illinois
There is no reason to have an attorney involved in a lemon law case. The only reason is to give money to an attorney for doing nothing. Before anyone disagrees, I've been at a lemon law hearing in Illinois and no attorney was needed for anything.
Drifting
Joined: Jan 2014
Posts: 1,619
Likes: 1,128
From: Cincinnati OH
Doubtful- sounded like random failures to me.
Advanced
Joined: Sep 2005
Posts: 78
Likes: 15
Race Director
Joined: Nov 2017
Posts: 12,759
Likes: 10,655
From: Prosper TX/Austin TX
2020 C6 of the Year Winner - Modified
Had a friend over today who was discussing his new C8Z HTC w/Z07 pkg that is having the engine pulled with only a few ticks over 1k mi due to what the dealership says is injector issues. Said they're replacing all injectors, gaskets, seals, etc. & it should take ~2 weeks. Needless to say, he's not thrilled.
Said the dealership offered to buy it back for what he paid, but wouldn't add for the full ppf & ceramic he did.
Said the dealership offered to buy it back for what he paid, but wouldn't add for the full ppf & ceramic he did.
Race Director
Joined: Nov 2017
Posts: 12,759
Likes: 10,655
From: Prosper TX/Austin TX
2020 C6 of the Year Winner - Modified
Right. Nothing like paying $170k+ & needing the engine pulled at 1k mi. I'd be initiating a buy-back immediately. But not my car. I hope it works out for him as it's a great-looking car.
Burning Brakes
Joined: Dec 2006
Posts: 1,146
Likes: 508
Had a friend over today who was discussing his new C8Z HTC w/Z07 pkg that is having the engine pulled with only a few ticks over 1k mi due to what the dealership says is injector issues. Said they're replacing all injectors, gaskets, seals, etc. & it should take ~2 weeks. Needless to say, he's not thrilled.
Said the dealership offered to buy it back for what he paid, but wouldn't add for the full ppf & ceramic he did.
Said the dealership offered to buy it back for what he paid, but wouldn't add for the full ppf & ceramic he did.
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CF Community Team
Joined: Oct 2007
Posts: 1,134
Likes: 604
From: NorCal San Jose
Good point, if he could get ~$10K off MSRP it would be a wash. I wonder how the state deals with the taxes, or does GM reimburse those? Taxes for me were almost 10% so it would suck to have to pay again.
Race Director
Joined: Nov 2017
Posts: 12,759
Likes: 10,655
From: Prosper TX/Austin TX
2020 C6 of the Year Winner - Modified
Burning Brakes
Joined: Jul 2024
Posts: 785
Likes: 471
when i was doing my buyback GM provided me documentation that my state does not allow them to reimburse sales taxes. Unsure why the state doesn't look out for its people. Anyways as I purchased the car from an out of state dealer, and that state does allow tax reimbursement I did get full reimbursement. I called several attorneys and one who exclusively deals in lemon law advised I explore the reimbursement using purchase state, not residency state.
CF Community Team
Joined: Oct 2007
Posts: 1,134
Likes: 604
From: NorCal San Jose
when i was doing my buyback GM provided me documentation that my state does not allow them to reimburse sales taxes. Unsure why the state doesn't look out for its people. Anyways as I purchased the car from an out of state dealer, and that state does allow tax reimbursement I did get full reimbursement. I called several attorneys and one who exclusively deals in lemon law advised I explore the reimbursement using purchase state, not residency state.
4th Gear
Joined: Jan 2020
Posts: 4
Likes: 1
Catastrophic engine failure
Hi All-
Just received my 2025 in January with the ZO6 along with the ZO7 package. Ran great up until 606 miles and the engine failed, GM was real good about fixing it as well as the dealer, it’s just a real bummer to have that happen. The dealer was told by Chevrolet not to even crack it open they wanted it back. I would really like to know what happened to it, i tried GM customer service and they said talk to your dealer, well that went nowhere. If anyone has any idea how to find out I would appreciate it. I would just like to know if what I felt and heard lines up with what they found out.
They are now putting together a repurchase package which I’m waiting to hear from them as well, if anyone has any experience with the process I could certainly use the help in understanding the process.
Just received my 2025 in January with the ZO6 along with the ZO7 package. Ran great up until 606 miles and the engine failed, GM was real good about fixing it as well as the dealer, it’s just a real bummer to have that happen. The dealer was told by Chevrolet not to even crack it open they wanted it back. I would really like to know what happened to it, i tried GM customer service and they said talk to your dealer, well that went nowhere. If anyone has any idea how to find out I would appreciate it. I would just like to know if what I felt and heard lines up with what they found out.
They are now putting together a repurchase package which I’m waiting to hear from them as well, if anyone has any experience with the process I could certainly use the help in understanding the process.
Drifting
Joined: Dec 2016
Posts: 1,702
Likes: 577
Hi All-
Just received my 2025 in January with the ZO6 along with the ZO7 package. Ran great up until 606 miles and the engine failed, GM was real good about fixing it as well as the dealer, it’s just a real bummer to have that happen. The dealer was told by Chevrolet not to even crack it open they wanted it back. I would really like to know what happened to it, i tried GM customer service and they said talk to your dealer, well that went nowhere. If anyone has any idea how to find out I would appreciate it. I would just like to know if what I felt and heard lines up with what they found out.
They are now putting together a repurchase package which I’m waiting to hear from them as well, if anyone has any experience with the process I could certainly use the help in understanding the process.
Just received my 2025 in January with the ZO6 along with the ZO7 package. Ran great up until 606 miles and the engine failed, GM was real good about fixing it as well as the dealer, it’s just a real bummer to have that happen. The dealer was told by Chevrolet not to even crack it open they wanted it back. I would really like to know what happened to it, i tried GM customer service and they said talk to your dealer, well that went nowhere. If anyone has any idea how to find out I would appreciate it. I would just like to know if what I felt and heard lines up with what they found out.
They are now putting together a repurchase package which I’m waiting to hear from them as well, if anyone has any experience with the process I could certainly use the help in understanding the process.
thanks
Burning Brakes
Joined: Jul 2024
Posts: 785
Likes: 471
Hi All-
Just received my 2025 in January with the ZO6 along with the ZO7 package. Ran great up until 606 miles and the engine failed, GM was real good about fixing it as well as the dealer, it’s just a real bummer to have that happen. The dealer was told by Chevrolet not to even crack it open they wanted it back. I would really like to know what happened to it, i tried GM customer service and they said talk to your dealer, well that went nowhere. If anyone has any idea how to find out I would appreciate it. I would just like to know if what I felt and heard lines up with what they found out.
They are now putting together a repurchase package which I’m waiting to hear from them as well, if anyone has any experience with the process I could certainly use the help in understanding the process.
Just received my 2025 in January with the ZO6 along with the ZO7 package. Ran great up until 606 miles and the engine failed, GM was real good about fixing it as well as the dealer, it’s just a real bummer to have that happen. The dealer was told by Chevrolet not to even crack it open they wanted it back. I would really like to know what happened to it, i tried GM customer service and they said talk to your dealer, well that went nowhere. If anyone has any idea how to find out I would appreciate it. I would just like to know if what I felt and heard lines up with what they found out.
They are now putting together a repurchase package which I’m waiting to hear from them as well, if anyone has any experience with the process I could certainly use the help in understanding the process.
Intermediate
Joined: Apr 2025
Posts: 40
Likes: 11
Ford did that with the GT350s. Many of them went bad due to oil consumption and they replaced lots of engines, but never said what the issue was and they took the motor back. I had one replaced at 5 K miles as it was burning a quart every 150 miles at the end of its short life. The new long block had its own ID which made some people mad, as they wanted the new block to be stamped with the failed engine number. Ford said nope. If you want new free motor you accept it’s not going to be the same serial number as the bad one.
Racer
Joined: Apr 2025
Posts: 266
Likes: 219
From: Long Island New York
Reading of all these LT6 failures is giving me cause to think I should have ordered a Stingray rather than a ZO6. Can only imagine the issues that will arise with the ZR1's coming soon. This is like a crap shoot and I am not a gambler.
Race Director
Joined: Jul 2018
Posts: 10,555
Likes: 8,339
From: San Antonio, TX/Mahopac, NY
2024 Corvette of the Year Finalist - Modified
2024 Corvette of the Year Finalist - Unmodified
2023 C7 of the Year Winner - Modified
It’s not much of a gamble when you play with house money. Between the warranty and lemon law you are covered. The people who buy used with no warranty or modify their car immediately and then have a problem only to find they voided the warranty are the real gamblers.
Racer
Joined: Apr 2025
Posts: 266
Likes: 219
From: Long Island New York
While that is true, spending $150 k on a car to have a serious engine problem which would require a dealer mechanic to tear it out while trying to make book time is not my idea of a good time. Trust me, I know about how things are done in dealerships . I have been a mechanic for 45 years.
Team Owner
Joined: Feb 2013
Posts: 22,598
Likes: 14,555
While that is true, spending $150 k on a car to have a serious engine problem which would require a dealer mechanic to tear it out while trying to make book time is not my idea of a good time. Trust me, I know about how things are done in dealerships . I have been a mechanic for 45 years.
