strange noise

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Jul 27, 2008 | 12:06 PM

SHen350

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From: Las Vegas NV

strange noise

Last night while driving my new 08 C6 I was heard a strange sound that I haven't heard before. It sorta sounds like a card in a kids bycycle spokes. It's rather faint and can only be heard when I am moving. I have an LS3 MN6. If I am sitting at a stop light with or with out the clutch in I can't hear it. If the clutch is in it also doesn't make the noise. It is only when I have the car under power that I can hear it. It's no louder with the windows down as with them up and if the air is on more then low it drowns it out.
I have no idea if this is a normal sound or not. I don't recall hearing it before, but I only have 150 miles on the car. Just wondering if this is a normal sound or something I should have looked at, thanks.

Jul 27, 2008 | 01:09 PM

b4i4getit

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From: Toronto Ontario Canada

Should be easy to find. If it only happens when the car is in motion then it has to be related to some rotational issue. Check each wheel well and under the car for some stray piece that is flapping in the wind. It could be a sticker or something like that.

Jul 27, 2008 | 02:55 PM

fleetc

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From: Navarre Florida

Check for a cat under the hood.

By your description, definitley something to do with wheels or driveshaft.

Jul 27, 2008 | 02:59 PM

hulksdaddy

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From: R.I.P Zebra Ct

If you hear it mostly in the 1500-2200 rpm range, it's the normal "ticking" sound all LSx engines make.

Between the injectors and valvetrain, these motors make some noise. Both my LS2 and LS7 have made it.

Perfectly normal.

Jul 27, 2008 | 05:24 PM

HawaiiC6

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From: Mililani HI

Is the sound at all speeds? In slow turns?

Jul 27, 2008 | 06:37 PM

RussellZ

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Remove the baseball card from your spokes and the noise will stop.

Jul 27, 2008 | 09:52 PM

SHen350

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From: Las Vegas NV

It's all the time at all speeds when the trans is engaged. It is a little louder in 4th gear then the others, but always there.

Jul 27, 2008 | 10:26 PM

dpigguy

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From: Magnolia Texas

I have the same set up but no noise - engine does make a ticking sound around 2000 rpms which may be what you are hearing if that is the range of engine speed you are at. otherwise, sounds like you may have a dealer visit in your future