C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

What is this noise??

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Old May 18, 2002 | 04:55 AM
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Default What is this noise??

When i turn off the car, and when the enigne has stoped complete. I have a sound that keeps goin for about 3 sec. Its a ticking sound. Its not from the enigne, becuase the engine has stoped.
What could that be?
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Old May 18, 2002 | 07:34 AM
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Default Re: What is this noise?? (devilfish)

What could rotate when the enigne is off?
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Old May 18, 2002 | 10:21 AM
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Default Re: What is this noise?? (devilfish)

ttt :p:
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Old May 18, 2002 | 10:24 AM
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Default Re: What is this noise?? (devilfish)

Could it be the fan spinning down? There might be something stuck through the radiator hitting the fan blade.
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Old May 18, 2002 | 10:27 AM
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Default Re: What is this noise?? (92Shawnster)

I have checked that, and no :( Wierd thing..
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Old May 18, 2002 | 10:28 AM
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Default Re: What is this noise?? (devilfish)

It's the sound of hot metal contracting as it cools. It's normal.

You hear it more on aluminum componented cars than on all-iron; different expansion/contraction rates. Aluminum cools down quicker.

You usually hear it more on cars where the goofy mechanic (coff, coff) has removed the dirty, sagging under-hood insulation...Like I do on all my cars... :D
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Old May 18, 2002 | 11:06 AM
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Default Re: What is this noise?? (Rich B.)

no, its not that. This is WAY to loud for that. It sounds like that thing the fans used to wave above there heads in soccergames :)
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Old May 18, 2002 | 11:11 AM
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Default Re: What is this noise?? (devilfish)

could it be a bad IAC motor. Or something with the emissions control systems? Air switching solenoid?
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