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[Z06] I hate these Threads butttt

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Old 09-30-2014, 05:12 PM
  #1  
slolane
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My 06 just dropped a valve Saturday I have 59,000 miles on it The only mod is cia and a tune a couple of strip passes a couple years ago. My car is just my Saturday go to cruises and a trip to the Dragon once a year.

I was cruising down a busy street at 35mph and I heard the dreaded sound of metal grinding. I was lucky enough to be by a parking lot pulled right in. The engine is frozen right up some coolant leaking

Won't know how much damage till I pull the head but the spark plug is smashed. I expect to see at least a piston damaged and who knows what else

I really hoped GM would have a recall but no luck
Old 09-30-2014, 05:25 PM
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Bill Dearborn
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They may not have a recall but they may be willing to help. Time to ask them for help. The worst thing they can say is "NO". They may surprise you.

Bill
Old 09-30-2014, 05:37 PM
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lebvette
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I hate that this has happen to you. Good luck with your fix.
Old 09-30-2014, 06:12 PM
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ATC399
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cia?...original owner?...its never good to hear about another LS7 grenading...good speed on the fix
Old 09-30-2014, 06:15 PM
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dmuellenberg
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Originally Posted by Bill Dearborn
They may not have a recall but they may be willing to help. Time to ask them for help. The worst thing they can say is "NO". They may surprise you.

Bill
Like you said, the worst thing they can say is no, but I doubt they will do anything considering it is an 06 with 59k miles (which only had a 3 year, 36,000 mile powertrain warranty versus the 5 year, 100,000 mile warranty for 07s and later).
Old 09-30-2014, 06:28 PM
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DaOtherOne
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LS7
Old 09-30-2014, 06:39 PM
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Dirty Howie
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All too common of a story. Take Bill's advise. Keep us posted.

Sorry for your lost motor


DH
Old 09-30-2014, 07:02 PM
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Unreal
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Sad. Any reason you didn't address the issue if you knew about it?

I wouldn't touch an ls7 without done heads or a warranty.

Good luck.
Old 09-30-2014, 07:03 PM
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Minkster
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Originally Posted by slolane
My 06 just dropped a valve Saturday I have 59,000 miles on it The only mod is cia and a tune a couple of strip passes a couple years ago. My car is just my Saturday go to cruises and a trip to the Dragon once a year.

I was cruising down a busy street at 35mph and I heard the dreaded sound of metal grinding. I was lucky enough to be by a parking lot pulled right in. The engine is frozen right up some coolant leaking

Won't know how much damage till I pull the head but the spark plug is smashed. I expect to see at least a piston damaged and who knows what else

I really hoped GM would have a recall but no luck
How do you know it is a dropped valve and not a bearing? Did you catch the oil pressure before shutting it down? I feel your loss...
Old 09-30-2014, 07:58 PM
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slolane
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Originally Posted by Bill Dearborn
They may not have a recall but they may be willing to help. Time to ask them for help. The worst thing they can say is "NO". They may surprise you.

Bill
Working on that taking to a dealer tomorrow
Originally Posted by ATC399
cia?...original owner?...its never good to hear about another LS7 grenading...good speed on the fix
Cold air intake second owner
Originally Posted by Minkster
How do you know it is a dropped valve and not a bearing? Did you catch the oil pressure before shutting it down? I feel your loss...
No warning grinding noise locked right up. Pulled the plugs when I got home 7 came out as they should number 1 had to really force it when it came out it was crushed.
Old 09-30-2014, 08:01 PM
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RedZ4me
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sorry to read this, but on a positive note, there seems to be fewer of these posts as owners do a fix before it happens to them........so good on us who have. Again, sorry to read and good luck
Old 09-30-2014, 08:10 PM
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'06 Quicksilver Z06
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Originally Posted by slolane
My 06 just dropped a valve Saturday I have 59,000 miles on it The only mod is cia and a tune a couple of strip passes a couple years ago. My car is just my Saturday go to cruises and a trip to the Dragon once a year.

I was cruising down a busy street at 35mph and I heard the dreaded sound of metal grinding. I was lucky enough to be by a parking lot pulled right in. The engine is frozen right up some coolant leaking

Won't know how much damage till I pull the head but the spark plug is smashed. I expect to see at least a piston damaged and who knows what else

I really hoped GM would have a recall but no luck


Originally Posted by slolane
Working on that taking to a dealer tomorrow

Cold air intake second owner

No warning grinding noise locked right up. Pulled the plugs when I got home 7 came out as they should number 1 had to really force it when it came out it was crushed.
Sorry to hear this slolane. But it was bound to happen that someone amongst us was gone to suffer another failure of these stock exhaust valves. The other sad thing, is that someone else, another forum member in here, is going to be next, in behind you.

Good luck getting it back running.

Last edited by '06 Quicksilver Z06; 10-09-2014 at 09:05 AM.
Old 09-30-2014, 08:13 PM
  #13  
slolane
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Originally Posted by RedZ4me
sorry to read this, but on a positive note, there seems to be fewer of these posts as owners do a fix before it happens to them........so good on us who have. Again, sorry to read and good luck
I know I should have and was in the plans for this winter while in storage. I had a Kia Saphia the cheapest Kia made put 80,000 trouble free miles on it before it rusted away. Get a 70,000 thousand dollar sports car and have to swap heads before it blows up Don't you guys think there is something wrong with this?

My point is you should not have to change anything on a car like the z06 to make it go for more than 60,000 miles Or am I wrong in this thinking?
Old 09-30-2014, 08:18 PM
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RedZ4me
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Originally Posted by slolane
I know I should have and was in the plans for this winter while in storage. I had a Kia Saphia the cheapest Kia made put 80,000 trouble free miles on it before it rusted away. Get a 70,000 thousand dollar sports car and have to swap heads before it blows up Don't you guys think there is something wrong with this?

My point is you should not have to change anything on a car like the z06 to make it go for more than 60,000 miles Or am I wrong in this thinking?
no you're not wrong but it is what it is with this engine.........but do remember, the more high perf. a car is, typically they do need more maintenance ie. racing. As a drag racing lover, a 200 hp engine can probably keep going and going, a 1000 hp, not so much.
Old 09-30-2014, 08:24 PM
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slolane
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Originally Posted by RedZ4me
no you're not wrong but it is what it is with this engine.........but do remember, the more high perf. a car is, typically they do need more maintenance ie. racing. As a drag racing lover, a 200 hp engine can probably keep going and going, a 1000 hp, not so much.
I understand and agree The wound is really fresh right now and I am venting
Old 09-30-2014, 08:51 PM
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LT5 John
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Sorry to hear this Slolane...As Bill has said, maybe GM will help out, can't hurt to ask...
Old 09-30-2014, 09:14 PM
  #17  
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PLEASE check your valve stem to guide clearances before you do anything else (there are plenty of threads on how to do this - easier on the passenger side - should not take more than 30 mins to an hour if you work slowly) even if it is just a "wiggle test".

We all want to know if you had worn guides, which FATIGUED the valve, which caused it to fail.

This is important - there are folks still bashing the stock exhaust valves as being the weak link, when in fact it is MUCH more likely that they just can't take the abuse of running in a severely worn guide.

Sorry for your loss!!

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Old 09-30-2014, 09:22 PM
  #18  
erikszr1
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it hurts, im sorry to hear. speedy recovery!!!! for those that don't believe it can happen, ZAP!!!
Old 09-30-2014, 09:44 PM
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GMuffley
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Sorry to hear of your misfortune. I'd be pissed too.
Old 09-30-2014, 09:45 PM
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FlipRay
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Originally Posted by Unreal
Sad. Any reason you didn't address the issue if you knew about it?

I wouldn't touch an ls7 without done heads or a warranty.

Good luck.
Done heads not always a damn gurantee. I can attest to that since I just picked up an 08 with a built head that was put together back in Jan 2013.







Stainless steel exhaust valve, still trying to figure out what the hell happened to it since thats the only valve that has this issue.


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