Q-- How do you tell when ball joints are bad or going bad? Just what are the "sounds" they make or behaviors that manifest?
A--By the time ball joints start making noise, they are dangerously worn. But before they make a sound, you may notice looseness or play in the steering. It is best to have a professional mechanic examine them whenever you have your next lube and oil change. By the way, the person at a fast lube joint may not have the expertise to do this.