C7 Z06 Discussion General Z06 Corvette Discussion, LT4 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track

Please help me bros.

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Old Apr 18, 2025 | 11:27 AM
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Jason Lee_Korea's Avatar
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Default Please help me bros.


Hello, I'm Jason Lee in Korea. I upload the link above, my Vette engine sounds.

It's really weird and I changed all kinds of oil and plugs yesterday, but suddenly happened today.

Does anybody else who know this sounds come from??

There no [engine check] alert and somtimes [Rear acle] service alert.

Plz help me. there's no info about corvette in Korea.
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Old Apr 18, 2025 | 11:57 AM
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Your right, that doesn't sound good. If you changed the plugs and then this started, then I would go back an look at your installation. Are they the correct spark plugs, installed correctly, plug wires attached firmly? Are any of the plug wires damaged?
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Old Apr 19, 2025 | 04:25 PM
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sounds like a miss fire , check wires , and plugs you installed.
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Old Apr 21, 2025 | 09:24 AM
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If it's a misfire you should be able to see which cylinder via a scanner.
Here in the US you can go to most auto parts stores and they will have one to connect to your car.
Mechanics will also have one.
Car enthusiasts might also have one, there are even some $20 Bluetooth versions that will work via an app on your phone.
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Old Apr 21, 2025 | 11:35 AM
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Is the car throwing any codes? If its a misfire, I would think for certain that it would throw codes. Don't take this the wrong way, I only ask because I don't know your mechanical ability, but did you put oil back in after you drained it? Its an LT4, a Dry Sump system, remember it takes about 10.5 quarts, wet sump takes about 6 quarts.

Last edited by Akcajunz; Apr 21, 2025 at 11:46 AM.
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Old Apr 21, 2025 | 12:01 PM
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Default Z06

Originally Posted by Jason Lee_Korea
https://youtube.com/shorts/C2IN7kuxvJI?feature=share

Hello, I'm Jason Lee in Korea. I upload the link above, my Vette engine sounds.

It's really weird and I changed all kinds of oil and plugs yesterday, but suddenly happened today.

Does anybody else who know this sounds come from??

There no [engine check] alert and somtimes [Rear acle] service alert.

Plz help me. there's no info about corvette in Korea.
I agree with rechecking the plugs and wires. I've had 2 coils go bad over the years it was #8 both times. You may want to look into that as well.
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