I just lowered my 2002 Protege ES about a week ago w/ ground control coilovers and i didn't have any problems until yesterday when i started hearing a clicking/grinding noise from the right rear wheel. Turning or any slight bumps in the road make the noise much worse and it is getting progressively worse as i drive it. Any suggestions to what the problem could be?

 

There are these little black rubber rings (they look like rubber bands) that are suppose to go in between the red threaded cylinder and your strut. They keep the cylinder from clanking against the strut housing. Check and make sure you've installed those.

A friend of mine asked me the same question a few months ago, but I forgot what he said was the problem, I'll ask'im and let you know.