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Ya might say the failure rate is .0001% but I'm not going to gamble I'm going to start adding
Stuff to the engine after the 36 months.18K is A nice chunk of coin.
Ya might say the failure rate is .0001% but I'm not going to gamble I'm going to start adding
Stuff to the engine after the 36 months.18K is A nice chunk of coin.
If you are that concerned........
Might wanna wait until the power train warranty is up.
I recently blew my engine 2014 Stingray, #7727 with 18K miles. I wanted to spare the drama and share the complete time line and major events:
1. June 7th , engine started making a lower end knock: http://youtu.be/FoUBjXrhtzQ
2. June 8 through June 11, warranty tear down, 4 blown bottom bearings
3. June 12th complete long block engine, torque tube and clutch assembly approved under warranty
4. June 16th new motor arrives at dealership containing metal dust in cylinder heads
5. June 17th GM sends 2nd replacement motor VIA FedEx P1.
6. June 18th Motor arrives at Dealership and installation process begins
7. June 19th Car is ready for pick-up $25K+ repair bill covered by GM
I only lost one weekend and now basics have a new car, thank you GM and my local dealer for the best service in the world.
RIP!
Why did the dealer pull the heads on the first replacement engine? Can you see the combustion chamber/valves when the intake manifold is off?
What are those first two pics? You mention bad lower end bearings but show two pics that aren't bearings. Did the dealer tell you if it was rod or main bearings?
Two major points to make here...
1) Honda has the industries best record at 1 in 340 with Toyota in second with a 2 to 1 margin or 1 in 170. If GM has sold 60,000 I would expect to see around 600 engine failures or about 1% which is still good odds. The big question is over what time frame is the rating?
2) Seems there are more M7 failing than A6 or A8. Could it be the manuals are jolting the powertrain much more than the autos?
I think there are more A6 and A8 than M7 NO?
What are those first two pics? You mention bad lower end bearings but show two pics that aren't bearings. Did the dealer tell you if it was rod or main bearings?
I lost 3-4 Lower bearings (play) and engine had signs of liberation loss through out.
I was very lucky that it failed during slow operation, if it happened at high speed it would of more destructive.
What are those first two pics? You mention bad lower end bearings but show two pics that aren't bearings. Did the dealer tell you if it was rod or main bearings?
Very good question. My assumption would be main bearing. I think that's what the others were. Maybe CSEVEN can ask his dealer?
Yikes- I've heard about this for the Z51.
Is this the first case of a blown engine for a base?
Glad it was resolved quickly.
Guess you had to break it in again for the first 500 miles.
No it wasn't I believe I had the first 6/2/14 [nothing that I'm proud of]. Vin was 6631. Car was also purchased in RI. Odd coincidence. the OP luckily heard the failure, where I found the failure while driving. Def. won't get into that debacle. To the OP, glad you got everything squared away fairly quickly!
To each his own but if it were my car - I would have taken the hit and traded it rather than have those monkeys tear it apart - it will never be the same as a factory install.
To each his own but if it were my car - I would have taken the hit and traded it rather than have those monkeys tear it apart - it will never be the same as a factory install.
Wouldn't that be a GOOD thing considering the circumstances?
So the new LT1 and LT4 engines are both failing...
I'm curious about the engine failure rates for the C6 ZR-1, Z06 and base models, for comparison. Are the new engines really failing at a higher rate? Or are the failures just getting more publicity because of the still-sensational C7 Corvette redesign? LT4 is the most powerful production engine in GM history?
Regardless, this is just reinforcement in my belief to NOT buy a car in the first 2 years of a new design. Don't misunderstand, I love the C7 quite a lot! It's an awesome car all-around and the supercar performance bargain -- bang for the buck -- simply cannot be beat anywhere. I just think it's a good idea to wait a few years until they get the bugs and gremlins worked out of the new design, as much as possible. For example, the last 2 years of the C4 (1995-1996) were easily the best years for that generation, a typical example.
So the new LT1 and LT4 engines are both failing...
I'm curious about the engine failure rates for the C6 ZR-1, Z06 and base models, for comparison. Are the new engines really failing at a higher rate? Or are the failures just getting more publicity because of the still-sensational C7 Corvette redesign? LT4 is the most powerful production engine in GM history?
See post 69 about 8 post above here. I think too many people are eager to run around screaming the sky is falling if they know of 2 or 3 failures. Keep in mind, a fair portion of the failures are coming from LT1's that are pushed hard with superchargers and/or slicks at the track. I admit there's been discussion about main bearing design but as far as I know, GM has not redesigned or that. They are normally fairly quick to address significant issues such as the 2001 oil consumption. A new piston ring design fixed that. I'm confident major problems will be addressed as needed. Again, see post 69 and ponder the numbers.
A pat on the back for the GM dealer that performed so well.
Question: What oil have you been using?
Dextos or Mobile 1 or something else.
Dexos is a specification, not a brand. Mobil 1 5w30 is Dexos approved. (Just saying' ;-)) I think you mean did they use the GM- branded synthetic blend 5w30 or Mobil 1 5w30- correct?
Just in case.....
