Valve Spring Again!
Safety Car
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From: Murrells inlet SC
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VIN 11000 would have been built the Week of 9/21. From the Faulty Valve Spring build Window Extended thread, the new end date for affected 6.2L engines is now October 7th, 2020. So, that is definitely inside the window.
OP, it sounds like you are reporting something you found on FB or elsewhere and not you own car. Could you please clarify?
OP, it sounds like you are reporting something you found on FB or elsewhere and not you own car. Could you please clarify?
Thread Starter
Pro
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VIN 11000 would have been built the Week of 9/21. From the Faulty Valve Spring build Window Extended thread, the new end date for affected 6.2L engines is now October 7th, 2020. So, that is definitely inside the window.
OP, it sounds like you are reporting something you found on FB or elsewhere and not you own car. Could you please clarify?
OP, it sounds like you are reporting something you found on FB or elsewhere and not you own car. Could you please clarify?
Race Director
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From: Sierra Foothills CA
This is a brand new car that I am considering buying. They replaced 1 valve spring but also had to do some work on a piston and something else. Have not got all the info yet. Car is repaired and runs fine I was told. Will this affect the value of the car later if I sell it and would this repair show up on a Carfax? Thanks.
Le Mans Master
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From: One Hour From Boston!
I'd take this one off the list and find another car. I don't see a good way to verify the quality of the internal work (piston related and who knows what else) after it's been buttoned up. And yes, it should show up on a Carfax report if it was a buy back. There will be other C8s to buy, so I wouldn't feel pressure to buy this one just because it's available now.
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Pro
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A buyback? Did the OP mention buyback? If it was simply warranty work and not a buyback, it should have no affect on future value. Cars go back to the dealer all the time for warranty work, it doesn’t affect future value. Further, the vehicle comes with a 60,000 mile / 5 years drivetrain warranty (5 years from original purchase date). You should be covered if anything happens in the next five years.
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Race Director
Joined: Dec 1999
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From: Sierra Foothills CA
A buyback? Did the OP mention buyback? If it was simply warranty work and not a buyback, it should have no affect on future value. Cars go back to the dealer all the time for warranty work, it doesn’t affect future value. Further, the vehicle comes with a 60,000 mile / 5 years drivetrain warranty (5 years from original purchase date). You should be covered if anything happens in the next five years.
I'm not sure if the repair work would show on a Carfax. Somebody else might know the answer to that. I'd still pass on the car for the reason I stated. You may feel differently. I wouldn't trust my local dealership to do an oil change, let alone deal with engine internals.
Pro
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This is a brand new car that I am considering buying. They replaced 1 valve spring but also had to do some work on a piston and something else. Have not got all the info yet. Car is repaired and runs fine I was told. Will this affect the value of the car later if I sell it and would this repair show up on a Carfax? Thanks.
6.2 LT1/LT2/LT4 with a spring failure, GM wants ALL the springs replaced.
If they only changed one, they did not repair that car correctly.
#PIP5752F: Service Engine Light Misfire Engine Noise With DTC P0300 P0106 P0506 - (Oct 28, 2020)During inspection if you determine that the engine has a broken valve spring it will be necessary to perform a cylinder leakage test on the affected cylinder.
If no cylinder leakage is observed and the vehicle is built between June 1, 2020 to October 7, 2020:
P/N 12691120 - 6.2L L87, LT1, LT2, LT4Please add any pictures of the concern to the case that will help with the diagnostics.
Check for a damaged intake manifold runner for the cylinder with the concern.
00-06-01-026M: Engine Replacement After Severe Internal Engine Damage -Replace Intake Manifold
If you determine that engine has cylinder leakage it will be necessary to inspect further to determine the extent of the engine damage to determine correct repair required;
If no cylinder leakage is observed and the vehicle is built between June 1, 2020 to October 7, 2020:
- For engines with RPOs L82, L84 and L8T replace the affected valve spring, if the vehicle is built between June 1, 2020 to October 7, 2020.
- For 6.2L engines RPOs L87, LT1, LT4 and LT2 It will be necessary to replace all valve springs on both banks if the vehicle is built between June 1, 2020 to October 7, 2020.
P/N 12691120 - 6.2L L87, LT1, LT2, LT4Please add any pictures of the concern to the case that will help with the diagnostics.
Check for a damaged intake manifold runner for the cylinder with the concern.
00-06-01-026M: Engine Replacement After Severe Internal Engine Damage -Replace Intake Manifold
If you determine that engine has cylinder leakage it will be necessary to inspect further to determine the extent of the engine damage to determine correct repair required;
- For 6.2L engines RPOs L87, LT1, LT4 and LT2 that has engine damage please follow PIP5759 for engine restriction.
Last edited by Newdude; Nov 9, 2020 at 02:52 PM.
Race Director
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From: Bonneville Salt Flats
Sorry. However, not the only such post here in the last day or two... unfortunately.
I don't think GM has a clue how far-reaching the use of faulty springs actually was (or is).
I don't think GM has a clue how far-reaching the use of faulty springs actually was (or is).
Advanced
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My VIN is 5 numbers away from this and my valve spring broke at 102 miles on the drive home from delivery. All spring replaced since and car runs and drives amazing.
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I didn't say it was a buy back. I said "if" it was, that should show on a Carfax.
I'm not sure if the repair work would show on a Carfax. Somebody else might know the answer to that. I'd still pass on the car for the reason I stated. You may feel differently. I wouldn't trust my local dealership to do an oil change, let alone deal with engine internals.
I'm not sure if the repair work would show on a Carfax. Somebody else might know the answer to that. I'd still pass on the car for the reason I stated. You may feel differently. I wouldn't trust my local dealership to do an oil change, let alone deal with engine internals.
probably depends on engine RPM at the time of the failure. that's good for you. many have not been so fortunate. do they drop the pan? clean the lines and cooler? i mean.. nobody wants fragments of metal flowing around in the oil even for a second knowing even a grain of sand can score a cylinder wall. good side is you have 5yrs or 60k before it becomes your actual problem. f it. enjoy the hell out of it. but if i were picking one up TODAY? i'd be getting a 24hr test drive and drive it for 500 miles in a day lmao. before i signed ANY papers.
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Race Director
Joined: Dec 1999
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From: Sierra Foothills CA
No.. but it will on that VIS or whatever GM call's it... so it becomes a game of being open and honest vs underhanded and dishonest. i know which way i would go and therefore i would pass on that car. frankly i cannot understand how anyone would be picking this car up until this is all sorted out now that it's beyond the point of just a "few within a small window"..
probably depends on engine RPM at the time of the failure. that's good for you. many have not been so fortunate. do they drop the pan? clean the lines and cooler? i mean.. nobody wants fragments of metal flowing around in the oil even for a second knowing even a grain of sand can score a cylinder wall. good side is you have 5yrs or 60k before it becomes your actual problem. f it. enjoy the hell out of it. but if i were picking one up TODAY? i'd be getting a 24hr test drive and drive it for 500 miles in a day lmao. before i signed ANY papers.
probably depends on engine RPM at the time of the failure. that's good for you. many have not been so fortunate. do they drop the pan? clean the lines and cooler? i mean.. nobody wants fragments of metal flowing around in the oil even for a second knowing even a grain of sand can score a cylinder wall. good side is you have 5yrs or 60k before it becomes your actual problem. f it. enjoy the hell out of it. but if i were picking one up TODAY? i'd be getting a 24hr test drive and drive it for 500 miles in a day lmao. before i signed ANY papers.
Yeah there was some serious BSing and dancing, AKA lying, being done by GM on that one. I ended up coming out of pocket to upgrade the second set of replacement heads that were covered by my extended warranty. GM told my local dealer to describe the whole thing as internet hysteria when I had them look into it. Thankfully I had a great dealership about 2 hours away that refused to hide the truth. They took great care of me.
Last edited by Les; Nov 9, 2020 at 11:54 PM.
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If they in fact only replaced only one valve spring, I would definitely pass on the car. If they replace all the others it might be a different story, but I would still be concerned about the work to the piston and any other parts of the engine. It would all come down to how much you trust the dealer’s service department to do the work right.
When I had my ‘00, it had excessive oil consumption and my local dealer replaced the #2 ring on all pistons under warranty. They did a great job, no more oil consumption and car ran great for the ensuing six years that I owned the car.
When I had my ‘00, it had excessive oil consumption and my local dealer replaced the #2 ring on all pistons under warranty. They did a great job, no more oil consumption and car ran great for the ensuing six years that I owned the car.
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This is a brand new car that I am considering buying. They replaced 1 valve spring but also had to do some work on a piston and something else. Have not got all the info yet. Car is repaired and runs fine I was told. Will this affect the value of the car later if I sell it and would this repair show up on a Carfax? Thanks.
Not sure about carfax, but the buyer can get the service records at the stealer and find out what work has been done. If you trade it in at a Chevy stealer they too would look at the service history and use that as a reason to low-ball.
Burning Brakes
Joined: Sep 2020
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Mine is 10294 door build date 9/20 valve spring gave up the ghost at 63 miles. This was at the beginning of the issue, so it took a couple weeks for GM to switch sources and get new units to dealer. Car was on life support in the dealer bay for a two weeks for parts, an extra week due to dealer stupidity <no mask, yes they got infected> So I would venture to say the spring replacement is shorten by some degree. Now I did luck out and mine broke in my garage on restart idle. Shut down at once. So no other damage.
For what it's worth, car has ran quite well since. Just rolled the 500 mile mark over and the car to life, computer unlocked. Actually it's like 500.5 miles when the magic happens for those who are picky picky. Much as I expected from specs and tech data, the car handles and runs very well. So hang in, you'll be fine.
For what it's worth, car has ran quite well since. Just rolled the 500 mile mark over and the car to life, computer unlocked. Actually it's like 500.5 miles when the magic happens for those who are picky picky. Much as I expected from specs and tech data, the car handles and runs very well. So hang in, you'll be fine.
Drifting
Joined: Jun 2019
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From: Port Charlotte,Fl
Mine is 10294 door build date 9/20 valve spring gave up the ghost at 63 miles. This was at the beginning of the issue, so it took a couple weeks for GM to switch sources and get new units to dealer. Car was on life support in the dealer bay for a two weeks for parts, an extra week due to dealer stupidity <no mask, yes they got infected> So I would venture to say the spring replacement is shorten by some degree. Now I did luck out and mine broke in my garage on restart idle. Shut down at once. So no other damage.
For what it's worth, car has ran quite well since. Just rolled the 500 mile mark over and the car to life, computer unlocked. Actually it's like 500.5 miles when the magic happens for those who are picky picky. Much as I expected from specs and tech data, the car handles and runs very well. So hang in, you'll be fine.
For what it's worth, car has ran quite well since. Just rolled the 500 mile mark over and the car to life, computer unlocked. Actually it's like 500.5 miles when the magic happens for those who are picky picky. Much as I expected from specs and tech data, the car handles and runs very well. So hang in, you'll be fine.