I start up my car and there is a whistling noise. It only whistles when it's not fully warmed up. I know it's not the turbo scraping because I've had it off before and it turns easily. I've tried to find vacuum lines loose and can't. It sounds like it's coming from the intake. It even whistles a second after I turn the car off. If you know what's going on let me know, it's driving me crazy. It's a 10th anniversary. Thanks.

 

I you don't have any other means, try using a long cardboard tube like one for a roll of paper towel. Put it up to your ear and move it around to potential leak locations. It may help you locate air whooshing. It did with me. That said, I don't know why a leak would only occur during warmup.