what could cause a wining noise when i start my car and it stops after warming u on 2001 Cadillac Seville SLS

it makes a wining noise when i start it up and quits after warming up could that be the transmission pump

It could be many things, unfortunately and without hearing the noise first hand or being able to do some basic diagnostic tests or be able to drive the car, its hard to say what the source of the noise may be.Could be transmission related or a loose fan belt or power steering pump issue.