Re: car makes a high whining sound when I start it
It may be your power steering pump.
When it is really cold, my 05 Montego will make a sort of howling/horn noise at cold start for a few minutes but it is definitely not power steering related.
If it is power steering related, the noise will change when you give the car more throttle. Whereas the noise my car makes does not change when more throttle is applied.