I have a 2002 Duramax that is making a whining/squeaking noise when I turn to the left. It only happens when the truck is cold. Once warmed up the noise goes away. I thought it was the power steering pump going out so I replaced it and the noise is still there. Just wanted to see if anyone else has had the same problem before. Any suggestions?:help:

Check the wheel bearings then move to the steering box.

Hey mine does that too! But mine is cause my seatbelt squeaks everytime I turn my head to the left?
Check your wheel bearings by jacking the truck up and checking for movement in the wheel.