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Old 05-09-2013, 08:08 AM   #3
Raptor3141's Avatar
Drives: 2010 2SS/RS RJT M6
Join Date: Aug 2012
Location: Milwaukee, WI
Posts: 205
I have the same issue within the first block or two after the car has been parked. I have been told that is the EVAP System self diagnostics. I originally thought it was from under the car as well but, the more I listen to it (every afternoon as I leave work), it sounds more as if it is coming from the back seat.

Check this thread:
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