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Old 02-25-2013, 07:39 AM   #1
Unreal


 
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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.

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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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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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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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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:
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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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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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