rattle noise when taking a left turn

In the morning my car takes about 10 seconds to level. If I have to take a left turn it will make a rattle noise untill i straighten the wheel. It happenes whener its cold outside about 60 degrees or lower. It also happenes at night when ever its cold. During the summer it dosent do it. What do you think this is? It drives fine its just if someone else is in the car there like "what the hell is that"?

Well what side of the car does it seem to be coming from? Does it sound like a light piece of metal or something heavier sounding?

It comes from the front driver side. Iguess it sounds like a light weight peice of metal or something. It sounds like it comes from the box or the compressor for the lifting system.