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Old 07-27-2012, 08:55 PM   #256
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Replacement engine and the problem persists, obviously it's not the motor, unless you are one of the unluckiest people in the world. Opposite side of the coin, you may be one of the luckiest people in the world if GM is giving you a replacement car. Keep your chin up.
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Old 07-27-2012, 09:36 PM   #257
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Are you going with the same color and set up?
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Old 07-28-2012, 10:41 PM   #258
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Originally Posted by bumblebeecamaro View Post
Damn man, that sucks. I'd tell the dealership to keep that car and order you another.
Im surprised they didnt say "can not duplicate" typical dealer answer. glad to see you got a new one though. the first one would have never been the same to you.

Last edited by AKA; 07-28-2012 at 11:41 PM.
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Old 07-29-2012, 06:50 AM   #259
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Oil leak issues have happened on earlier model 6.2 V8's. I know there is a different engine, but the oil pan and rear main seal as well as the oil cooler have been involved on these vehicles as well. I wonder if there is a connection in some way. In fact, a TSB has been issued on the oil porosity issue in previous threads on earlier 2010-2012 Camaro's.
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Old 07-29-2012, 07:51 AM   #260
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How many people here have actually driven their ZL1's close to the point of full throttle red line shifts ("like you stole it")?
There are too many CTS-Vs and ZL1s with this same engine running 4+ PSI over stock without oil leaking problems. Your dealer is just trying to find another excuse for the problem since they don't have any answers. Unless its some bizarre coincidence, I wonder if isn't something else like the oil pan as mentioned earlier.

I hate to read about this problem and I'm really glad you have another car in process. Too bad it's at the end of August for a build date.
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Old 07-29-2012, 10:54 PM   #261
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Resolution

The Service Technician and the Service Manager had to consult an engineer via a telephone call and they all came to the conclusion that it had to be the PCV System. They checked that all the hoses were not blocked and in fact functioning, but inspected where they come together. They noticed the hoses come together at a metal can and after inspecting this they found that a rubber grommet which connects this can to the intake manifold had a mis-punched hole. The blocked grommet caused pressure to build in the engine which caused oil to leak passed the main seal in both motors at high RPM's.

The sum of this entire repair is approaching a month long and a hair under $17,000 in parts of warranty work caused by one mis-manufactured rubber grommet which probably cost $0.40 and a PCV System that could've been replaced by popping the hood in twenty minutes if properly diagnosed.

It seems to me like this could be a sporadic issue with the ZL1 PCV System, if it is ZL1 specific, and if in fact this mis-manufactured grommet was not a one-time error. So if anyone finds that after driving the car at high engine RPM's there is noticeable oil leaking, I would definitely check the PCV System before assuming anymore serious repairs. Those of you who had called out the PCV System as a likely source of the problem, you called it correctly.
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Old 07-29-2012, 11:04 PM   #262
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Just curious, but have you had full coverage insurance on the car the whole time theyve had it, and are you required to keep it on the car until your replacement arrives?

Hopefully you're not getting shanked into paying for insurance you don't need. I know mines roughly 100 a month.
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Old 07-30-2012, 08:47 AM   #263
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Wow...a $ .40 grommet cause all this drama..........Guess they wont make that mistake a gain....Glad they located the issue and glad you are getting a new ride.
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Old 07-30-2012, 08:48 AM   #264
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Quote:
Originally Posted by CAM ZL1 View Post
The Service Technician and the Service Manager had to consult an engineer via a telephone call and they all came to the conclusion that it had to be the PCV System. They checked that all the hoses were not blocked and in fact functioning, but inspected where they come together. They noticed the hoses come together at a metal can and after inspecting this they found that a rubber grommet which connects this can to the intake manifold had a mis-punched hole. The blocked grommet caused pressure to build in the engine which caused oil to leak passed the main seal in both motors at high RPM's.

The sum of this entire repair is approaching a month long and a hair under $17,000 in parts of warranty work caused by one mis-manufactured rubber grommet which probably cost $0.40 and a PCV System that could've been replaced by popping the hood in twenty minutes if properly diagnosed.

It seems to me like this could be a sporadic issue with the ZL1 PCV System, if it is ZL1 specific, and if in fact this mis-manufactured grommet was not a one-time error. So if anyone finds that after driving the car at high engine RPM's there is noticeable oil leaking, I would definitely check the PCV System before assuming anymore serious repairs. Those of you who had called out the PCV System as a likely source of the problem, you called it correctly.
Oh my frickin gord. So, will they need to tear it back down to get the main seal to "re"seal?
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Old 07-30-2012, 10:21 AM   #265
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Not surprised at all. This is not the first time a $0.40 part caused GM to buy a car back.
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Old 07-30-2012, 10:33 AM   #266
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Since they finally located the souce of the problem and fixed it, will you still be getting/taking the new 2013 as a replacement?
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Old 07-30-2012, 10:36 AM   #267
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I've been a feild service tech for a whole lotta years (not on cars), and one thing I've discovered many, many times, is that the harder the problem is to find, the simpler the fix is once you find the problem.

Glad to hear they finally tracked down the problem.

Must be mighty embarassing for GM to replace an entire engine for a bad grommet.
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Old 07-30-2012, 10:50 AM   #268
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It's amazing how many people here called out the "PCV system" saying PCV valve is stuck/blocked/faulty/system isn't working.

This story will go down in lore.

NEW TSB FOR ANY GM V8 ENGINE: IF CUSTOMER SAYS OIL IS LEAKING, DISASSEMBLE THE PCV SYSTEM. CHECK AND VERIFY NO BLOCKAGE.

This discovery alone will save the company lots of money.

Last edited by 2001ragtop; 07-30-2012 at 11:13 AM.
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Old 07-30-2012, 09:25 PM   #269
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Dear CAM ZL1:
I wonder if this may be the issue with the SS models. Can you take a picture of the PCV "can"? Thank you in advance.
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Old 08-07-2012, 05:24 PM   #270
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Sorry to bump a thread but what's the latest news ?

Did they get it running without issues in the end or did new things pop up to ruin your day?

// Stefan
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Old 08-07-2012, 06:00 PM   #271
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Quote:
Originally Posted by SteeleRS/SS View Post
Im surprised they didnt say "can not duplicate" typical dealer answer. glad to see you got a new one though. the first one would have never been the same to you.

LOL! Can not replicate and operating as designed are my favorite, the dealer saw how awesome I am when I won the lemon case on my 2011 haha
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Old 08-07-2012, 06:02 PM   #272
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Quote:
Originally Posted by CAM ZL1 View Post
The Service Technician and the Service Manager had to consult an engineer via a telephone call and they all came to the conclusion that it had to be the PCV System. They checked that all the hoses were not blocked and in fact functioning, but inspected where they come together. They noticed the hoses come together at a metal can and after inspecting this they found that a rubber grommet which connects this can to the intake manifold had a mis-punched hole. The blocked grommet caused pressure to build in the engine which caused oil to leak passed the main seal in both motors at high RPM's.

The sum of this entire repair is approaching a month long and a hair under $17,000 in parts of warranty work caused by one mis-manufactured rubber grommet which probably cost $0.40 and a PCV System that could've been replaced by popping the hood in twenty minutes if properly diagnosed.

It seems to me like this could be a sporadic issue with the ZL1 PCV System, if it is ZL1 specific, and if in fact this mis-manufactured grommet was not a one-time error. So if anyone finds that after driving the car at high engine RPM's there is noticeable oil leaking, I would definitely check the PCV System before assuming anymore serious repairs. Those of you who had called out the PCV System as a likely source of the problem, you called it correctly.
It's kind of funny to me that, something so simple is the case 90% of the time with lemon cases. I had 6000 miles on my 2011 Camaro SS when my problems started and they first said its operating as designed, refused to change the transmission fluid to see if that was a problem, then they pulled the plug and saw shards which is a clear indication gears have been grinding, then they replaced synchros and all kinds of stuff. But nobody bothered to check to see if the clutch/brake fluid was okay since it was shared in the same resavoir. At the end of the battle and numerous phone calls to General Motors and a BBB Auto Line claim and the car getting lemon'd they finally heard me out and checked the fluid and it was black... They replaced it and the problems went away, and I still got a refund.

Last edited by qniknam; 08-07-2012 at 06:43 PM.
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