so, what to do about it? i have the same problem, only it is the passenger side.
remove strut and replace said spring or spring perch?
i've never owned a car with coil-overs...
edit!!
ok, just did a search. seems the poor little contour/mystiques suffer from cheap little ball-point pen springs that are prone to breaking. gotta be it. when i bang on the spring, i can replicate the noise my suspension makes when hitting a bump or going over a heave in the road.
this forum rocks.