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Old 02-25-2013, 07:39 AM   #1
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ZL1 Engine Failure

My friend Trevor has a 2012 ZL1. On the way home from a car show last night the motor let go. Was just cruising home. Car is bone stock besides wheels/tires. Picked a piece of piston up so definitely a major failure. I've never heard of issues like this on LSAs so it will be interesting to see what the dealer finds.

Updates:

Quote:
Originally Posted by Unreal View Post

He posted that the dealer already ordered a new motor. He has a Impala LTZ as a loaner until they get the new motor in. The owner of the dealer called him personally first thing in the morning. He bought it to take to shows and cruise around, no racing or hard driving on it.

Nothing but chevron 91 octane in it, which is the best available around here.
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Originally Posted by SSOOCH View Post

I was there. Nothing out of the ordinary. We were leaving the Autorama. I was right behind Him in My SS. He took off... BOOM! Oil everywhere, metal fragments all over the road and in the underbelly pan with a bunch of oil. His ZL1 had been sitting in the Autorama for four days before this.We shall wait to see what the dealer says. No mods, no track time or heavy use and abuse of this ZL1. Only 8k miles. Trevor is a good Friend of mine. It's terrible. I'm sure GM will repair it up and send him on his way. It's gotta be a freak accident that or somebody did something to his car at the Autorama.
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Originally Posted by SSOOCH View Post
I was at the dealer with Trevor yesterday. They haven't even begun to tear down anything. They have sent the data off his ECM to GM and are waiting to hear back. As long as they find that he hasn't tuned it they will ship a new motor per the Service Manager. His car has had full documented service and maintenance through this same dealer.
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Originally Posted by SSOOCH View Post
I just heard from Trevor. The dealer reported that the ECM was clean, new motor is on order!!
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Old 02-25-2013, 07:53 AM   #2
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That's unbelievable.
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Old 02-25-2013, 08:07 AM   #3
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looks like detonation? low octane perhaps? Oil never changed?

otherwise that's unacceptable, the resale value of that car has gone to shit if they have to either rebuild the motor or replace the entire lsa motor since its a certified zl1. If that were me id be PISSED
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Old 02-25-2013, 08:16 AM   #4
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Picked up the piece of piston from where ? Hope it was on the outside of the block ...
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Old 02-25-2013, 08:18 AM   #5
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I am sure the motor would be replaced, its the first major failure I have heard of from a stock one, even modified ones are holding up. Its mechanical, crap happens, they cant all be perfect, I even had a Viper that blew a stock motor at 400 miles new. Get the repair done and have fun, dont stress over it, there is a lot more things in life to stress over, a car is not one of them... I am sure GM will look into what happened. Would be curious when they read the computer, what they find. RPM at failure, temperature, ect.
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Old 02-25-2013, 08:37 AM   #6
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That's a damn shame! Had my motor blow at 2200km in my Denali. Lifter broke and somehow got into the piston and so on. All this while sitting at a light with no warning. Dealer replaced the motor under warranty with no problems. I'm sure your friend has nothing to worry about. GM is very good at standing behind their product. At least in my experience. It still sucks to have such a failure so young into it's life. At least your pal will be provided with some courtesy transportation while his car is being repaired. Vehicles all have problems at some point but the difference is how the manufacture stands behind their product! Keep smiling cause it will be fixed and he will be back on the road with his ZL1 in no time!
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Old 02-25-2013, 08:43 AM   #7
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Quote:
Originally Posted by LeanPocket View Post
looks like detonation? low octane perhaps? Oil never changed?

otherwise that's unacceptable, the resale value of that car has gone to shit if they have to either rebuild the motor or replace the entire lsa motor since its a certified zl1. If that were me id be PISSED
Always used highest possible and dealer changed the oil regularly.

Chunks of metal fished off the ground and belly pan. RPMs were <2k. He may have been idling at a stop light. I'll get more info today. It is already at the dealer. Onstar towed it.
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Old 02-25-2013, 08:46 AM   #8
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Old 02-25-2013, 08:46 AM   #9
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Quote:
Originally Posted by sycraft View Post
I am sure the motor would be replaced, its the first major failure I have heard of from a stock one, even modified ones are holding up. Its mechanical, crap happens, they cant all be perfect, I even had a Viper that blew a stock motor at 400 miles new. Get the repair done and have fun, dont stress over it, there is a lot more things in life to stress over, a car is not one of them... I am sure GM will look into what happened. Would be curious when they read the computer, what they find. RPM at failure, temperature, ect.
The E38 cannot log what happened at the time of the failure. Especially since it wouldn't be able to toss a code in that short time period. Say less than 10 seconds. Most likely a similar failure to my engine with the seized lifter in the bore and causing PTV contact.
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Old 02-25-2013, 08:48 AM   #10
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It's a good thing he was stock otherwise that would be one hell of a repair bill.
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Old 02-25-2013, 09:18 AM   #11
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Quote:
Originally Posted by Unreal View Post
Always used highest possible and dealer changed the oil regularly.

Chunks of metal fished off the ground and belly pan. RPMs were <2k. He may have been idling at a stop light. I'll get more info today. It is already at the dealer. Onstar towed it.
Ok, that does cover him then. Those are some of the first things they check, they'll most likely cover the motor under warranty, i hope they dont get it sent to be rebuilt (some dealers do that) this is NOT a common problem, and hopefully this is a contained scenario. Post more pics if u can of the piston so we can further discuss and diagnose
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Old 02-25-2013, 09:20 AM   #12
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No way to rebuild it with a huge hole in the block. A piston piece can't be on the ground and it still be rebuildable.
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Old 02-25-2013, 09:32 AM   #13
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Quote:
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No way to rebuild it with a huge hole in the block.
JB Weld : )
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Old 02-25-2013, 09:49 AM   #14
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JB Weld : )
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Old 02-25-2013, 10:06 AM   #15
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If a piece of piston is laying on the ground, I doubt serioulsy they will be REBUILDING anything.
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Old 02-25-2013, 10:48 AM   #16
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No mods ?
No abusive driving or over revving engine ?
No drag racing ?
No burning rubber ?

THEN, GM should replace the entire engine at no cost to owner.
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Old 02-25-2013, 10:49 AM   #17
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First failure I have seen....I suspect a valve dropped.
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Old 02-25-2013, 10:52 AM   #18
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That's unbelievable.
What's unbelievable? That cast pistons can break in a supercharged application?

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otherwise that's unacceptable
Unacceptable yes, unless the owner put in 87 octane on purpose. But in no way is it unbelievable...
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Old 02-25-2013, 10:53 AM   #19
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Originally Posted by JFWJR179 View Post
No mods ?
No abusive driving or over revving engine ?
No drag racing ?
No burning rubber ?

THEN, GM should replace the entire engine at no cost to owner.
If the answer to all those is no, I claim bs...he couldn't have owned a ZL1!
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Old 02-25-2013, 11:06 AM   #20
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If the answer to all those is no, I claim bs...he couldn't have owned a ZL1!
nice one.....
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Old 02-25-2013, 11:10 AM   #21
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Quote:
Originally Posted by JFWJR179 View Post
No mods ?
No abusive driving or over revving engine ?
No drag racing ?
No burning rubber ?

THEN, GM should replace the entire engine at no cost to owner.
Even if he had been to the dragstrip and done a burnout, it should still be replaced

:40 into this video
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Old 02-25-2013, 11:37 AM   #22
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Quote:
Originally Posted by LIVEVIL View Post
What's unbelievable? That cast pistons can break in a supercharged application?



Unacceptable yes, unless the owner put in 87 octane on purpose. But in no way is it unbelievable...
A major failure at no load like this is most likely not due to 87 octane or Hypereutectic pistons.

Most likely something broke causign a major failure.

at the rpm descriped you would not even be in boost or under load to cause the detonation required to fracture the piston. some other part most likely cause that.

As long as teh description of what happened is accurate.

Even forged, high strength steel componest fail if there is a mechanical failure in the engine.

I would not swet this at all. that is what waranty is for. with the synthetic oil supplied and age of the car I can't even see them denying based on oil changes. it is not like these car require 3mo/3000 mile oil changes.
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Old 02-25-2013, 11:40 AM   #23
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Quote:
Originally Posted by KKreme15 View Post
Even if he had been to the dragstrip and done a burnout, it should still be replaced

:40 into this video
^^^This. Shouldn't matter since he's still stock.

Unreal: He has the ashen grey one around here, right? Sucks.

Hope it gets fixed soon. Winter tires...? Its too fraken cold here to drive it around otherwise.
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Old 02-25-2013, 11:54 AM   #24
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Even if he had been to the dragstrip and done a burnout, it should still be replaced

:40 into this video



"This car is built to take to the track, race all day, then drive home" -GM

Leave it stock, GM has to cover it. If not....lawsuit...especially with all the marketing material and videos GM put out advertising the ZL1s "racing" ability. But that will never happen. No reason they should not cover it.
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Old 02-25-2013, 12:00 PM   #25
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Like others have said; shit happens, the dealer will cover it so no need to worry. It'll be back 100% in no time im sure.
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