Hi I own a 1989 2cv6 dolly. After a period of being parked up a metal on metal type noise comes from the front drivers side suspension when I push the car up and down. I think it might be coming from the hinge type unit that attaches the suspension leg to the chassis but I'm not sure. Please excuse the terminology used to describe the parts.
I had the same metal to metal noise. It was the sheet metal on the inner fender touching the track rod or the suspension arm. Made a horrid racket, but merely needed hand tweaking to get clearance. Try it with the fender off to make sure that corrects it.