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Old 08-20-2010, 01:59 PM   #1
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Question crackling sound

I recently purchased a used porsche boxster 2001 85kmile , I use it to work everyday and everytime I park the car, I hear a metal crackling sound for some time and then it dies down

Any idea what it is ?

Thanks
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Old 08-20-2010, 02:15 PM   #2
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From the rear of the car? Hot exhaust contracting as it cools down?
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Old 08-20-2010, 02:35 PM   #3
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Generally it come from the catalytic converter as it cools down.
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Old 08-22-2010, 08:24 AM   #4
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exhaust components cooling and contracting....they all do it
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