Minor LT2 engine vibrations

[HZOR]

Hi folks. I took delivery of my Z51 yesterday and loving it so far. Patiently waiting for 1.5 years paid off.

Question for owners: is it normal for LT2 engine to have this slight vibrations, like minor misfiring once in a while, that you can feel in the cabin? It is not a big deal, but I am still a bit surprised to see this in a brand new car. All of my other cars in the last decade ran much smoother, so I wonder if this is normal or I should have it checked out.

 

[Thom]

I found mine was a little rough initially. The trans and ECU seem to need some time to mesh with each other based on your driving style. Give it some time and see what happens. I may be totally out to lunch on this one .. maybe others have had similar experiences.

 

[HZOR]

Forgot to mention, this is only when idling. When driving, the engine is great (obviously I don't push hard since I am still in break-in period). Revving in neutral is also fine. It is only idling that is rough.

 

[Murray20c8]

I never noticed anything like that on mine.

 

[DenisC8]

A slight fluctuations in vibration / sound and what feels like slight misfire at idle is completely normal and has been described by many as a characteristic of 6.2L LT2.

 

[Murray20c8]

Perhaps it's the lump of the cam. I'm used to aftermarket cams so maybe that's why I never noticed it.

 

[Jack Raccoon!]

"The lump of the cam" omg Murray the only lump is on your head from the roll over lol...

 

[DenisC8]

Perhaps it's the lump of the cam. I'm used to aftermarket cams so maybe that's why I never noticed it.

that's exactly what it is

 

[gdb069]

I have driven 3 C8s and they all have slight vibrations from the engine. I was a bit surprised until I experienced others. All my other cars have been vibrationless, although I also drove a Ferrari that would shake your teeth.

 

[Rruuff Day]

My LT1 is a bit rough at an idle. Has been that was since new....

 

[Marcrazy]

I have noticed some rough idle, but performance seems good so I am doing nothing about it at the moment.