TL* THE CONTACT OWNS A 2004 LINCOLN NAVIGATOR. THE CONTACT STATED THAT WHILE DRIVING 20 MPH, THE FRONT END OF THE VEHICLE DROPPED AND STARTED TO EXHIBIT A LOUD, ABNORMAL NOISE. THE CONTACT MENTIONED THAT THE FAILURE RECURRED FOUR TIMES. THE VEHICLE WAS TAKEN TO THE DEALER WHO DIAGNOSED THAT THE AIR COMPRESSOR FAILED AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE WHO ADVISED THAT THEY WOULD CONTACT HIM BACK AT A LATER DATE. THE VEHICLE WAS REPAIRED. THE FAILURE MILEAGE WAS 57,677 AND THE CURRENT MILEAGE WAS 73,581.