Engine noise while idleing cold

I just started hearing a loud "whining" or "whirring" sound after start-up and while engine is cold and idleing----it lasts about a minute or two and then fades away, car runs fine.-----Most likely problem? Hi TRIMS713, At colder temps the alternator and power steering pump can make the noise you describe. Since it goes away I wouldn't be too concerned about it at this time. Bill Hi:

To add to 'Willnick's" post:

It sounds like it could be a worn dry belt. The cold dry weather will tend to make belts "Sing" a little bit.

Also, if your vehicle's a Ford product: Their power assisted racks are notorious for being "Noisy", especially when it's very cold outside. Hi,
I agree that it sounds like a "dry" belt. Especially in the winter with the salt dust from street salting it can dry out belts. When this happens to me I buy this "spray can" for lubing belts. Usually works right away. Just be careful to buy the correct spray. Not all are good for "serpentene" (probably spelled wrong) belts.
Tom KCar Repair Talk's forum.