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Old 11-09-2020, 02:47 AM   #4
John from PA
Registered User
 
Join Date: Nov 2005
Location: Downingtown PA
Posts: 8
The cold start whine you are hearing is most likely your secondary air injection system, which only runs briefly on cold starts.

Use of the word "whine" on my part is probably misleading. Whistle is the better term and it is pronounced and started well after reaching normal temperatures.
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