Marble dropping noise - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

George Dobens · 03-21-2010, 01:34 PM

About 7 to 10 seconds after i turn off my 2lt camaro i here this marble dropping noise. What is this?

Spiv · 03-21-2010, 01:38 PM

It comes when the power is cut to the lights, etc... I believe.

I hear it as well. At night watch when you get out. Wait for your lights to shut themselves off and you'll hear. I don't know what it is exactly but logic suggests it has to do with the car turning the power/lights off.

Of course, you may be hearing something entirely different, in which case

levi1922 · 03-21-2010, 02:20 PM

its not the lights, but it is something in the engine. If you have the HIDs on bright when you turn the car off, then you hear that noise RIGHT when you turn the car off, thats when the head lights go off. They do not come back on (if you have exit lighting on) until you remove the key from the ignition. i thought thats what it was too at first, until i noticed it even with out the lights.

I know the sound you are talking about, and im assuming it is normal.

tjmac49 · 03-21-2010, 02:20 PM

Hmmm ....

scaldedchevy · 03-21-2010, 02:25 PM

hey george...not to worry. i was up in arms about the same noise right after i bought my car. i even put it on youtube. there is also a thread on here that i started concerning the same noise.

the marble noise is coming from inside the throttle body as the butterfly valve cycles itself a couple of times after you kill the car. there is a GM programmer fix for it, that allows the valve to cycle half-way instead of completely, which quiets the noise but does not completely eliminate it. noting mechanically wrong though brother, don't worry. but trust me, i had the same concern.

scaldedchevy · 03-21-2010, 02:27 PM

George here is the title of the thread. towards the end it should answer those questions...

Series of whines and knocking noises after turning engine off

Infern0 · 03-21-2010, 05:24 PM

Anyone ever hear something like this from the rear of the car sometimes shortly after turning the car ON? Almost as if there are a few large drops of something hitting a plastic panel or something.

SS Man · 03-21-2010, 09:16 PM

Quote:

Originally Posted by Infern0

Anyone ever hear something like this from the rear of the car sometimes shortly after turning the car ON? Almost as if there are a few large drops of something hitting a plastic panel or something.

These are normal. fbodfather explained them in a thread a while back. Do some searching on the site and you will find the thread.

03-21-2010, 01:34 PM	#1
George Dobens Drives: 2010 2lt camaro Join Date: Mar 2010 Location: arizona Posts: 1	Marble dropping noise About 7 to 10 seconds after i turn off my 2lt camaro i here this marble dropping noise. What is this?

03-21-2010, 01:38 PM	#2
Spiv Why you gotta be hatin'? Drives: 2010 Camaro 2LT/RS Join Date: Aug 2009 Location: Simcoe, Ontario Posts: 248	It comes when the power is cut to the lights, etc... I believe. I hear it as well. At night watch when you get out. Wait for your lights to shut themselves off and you'll hear. I don't know what it is exactly but logic suggests it has to do with the car turning the power/lights off. Of course, you may be hearing something entirely different, in which case __________________ Hazman!!! Thx for the sig! We all have Camaro syndrome, I just suffer from the z28 strand.

03-21-2010, 02:20 PM	#3
levi1922 Drives: 2LT RS CGM Join Date: Apr 2009 Location: Texas Posts: 1,378	its not the lights, but it is something in the engine. If you have the HIDs on bright when you turn the car off, then you hear that noise RIGHT when you turn the car off, thats when the head lights go off. They do not come back on (if you have exit lighting on) until you remove the key from the ignition. i thought thats what it was too at first, until i noticed it even with out the lights. I know the sound you are talking about, and im assuming it is normal. __________________

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03-21-2010, 02:20 PM	#4
tjmac49 Drives: 2010 Camaro SS/RS, IBM, L99 Join Date: Jan 2010 Location: Lafayette, LA Posts: 365	Hmmm ....

03-21-2010, 02:27 PM	#6
scaldedchevy WITWIKI Drives: 2010 Yellow v6 Join Date: Jan 2010 Location: Louisiana Posts: 104	George here is the title of the thread. towards the end it should answer those questions... Series of whines and knocking noises after turning engine off

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Infern0 Bring It Drives: In Between Join Date: Sep 2009 Location: San Antonio, TX Posts: 2,929 View My Garage	Anyone ever hear something like this from the rear of the car sometimes shortly after turning the car ON? Almost as if there are a few large drops of something hitting a plastic panel or something.