Re: Whistle on startup
Can you tell where the sound comes from? Left or right, front or back? The AIR system is a likely candidate, but it runs every time you start the engine. You mentioned the noise happens on the first start of the day.
If you think it is coolant related, start the car with the coolant cap off, but don't run it too long that way.
Does it make a difference if the clutch is in or out?
Jim
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