Brett Timmer

Hi Everyone, New to the forum, so pardon me if this has been addressed elsewhere. I recently had my neighbor help me change out my brake pads and rotors (he is mechanically inclined and I am not so much). I purchased 4 new rotors and Wearever Platinum ceremaic pads for the front and rear. We got the first 3 sets changed without problem, and ran into issues on the last one. On the rear driver side, when we went to put the new pads in, we found that the rubber boot that is connect to the to piston in the caliper assembly was stuck and would not less us compress that piston to make room for the brake pad. The short story is we replaced the caliper assembly and finished putting on the new rotor and pads. This included greasing the pads, bleeding the brake line, and adding additional brake fluid to replace the fluid we lost with the caliper assembly change. All in all, I felt good about the quality of the work my neighbor was able to help me complete. This was about a month ago. Since then, I've noticed a squeak coming from what I believe is the rear driver side. The squeak occurs after the car starts rolling after being fully stopped. For example, I'll stop at an intersection, and once I release the brake pedal and start rolling, I'll hear a squeaking sound that is rhythmic. The squeak is more frequent as the car starts rolling faster and usually goes away upon reaching 10-15 mph. My brake performance has been good, the pedal is not soft or mushy, and I don't notice any problems accelerating and getting up to speed. I have two questions: 1) What could be causing this squeak (improperly lubricated pads or calipers, is the brake pad not fully releasing right away, etc.?) 2) Is this a cause for concern and should I have it looked at? I would really appreciate some feedback from fellow Edge/MKX owners. Thanks in advance for the help!