Hi there. I have a 2007 Trek 6700 with the Avid Juicy 3 brakes. I took my bike into my LBS to get a small adjustment after a few weeks of driving. My LBS found that my front brakes were leaking hydraulic fluid...so they sent them away. When I got them back, everything seemed fine...but the last few rides, Ive had a constant noise from my front rotor/caliper. Sometimes it would grind and other times it would squeek...dont think its too normal. haha. If I brought up my front wheel and slammed it into the ground while riding, it would go away...but once i use my front brakes...the noise returns. Could the brake pad be loose or something?? Thanks everyone.