I had a Sunfire GT once upon a time, and when my struts went bad it sounded alot like that. A binding or popping sound. But since you said you replaced them not to long ago I don't know what to tell ya. My '05 ZX3 pulls all over the road. I have a feeling it's because I have an Eibach sway bay up front and not in the rear, oh...on stock springs too. I gotta work on that thing.
