Eric P Cortland , OH August 06, 2016 Unexceptable loud vibration noise from air conditioner The compressor damper bushings had hardened over time and allowed the vibrations to transfer to the case causing loud rattling that was unbearable. I replaced the rubber bushings...problem solved. Read More... 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes Tools: Screwdrivers, Socket Set, Wrench Set