2005 Kia Optima LX V6 2.7 - 1 week ago, I had my AC compressor, dessicant bag & expansion valve replaced, & had the system evacuated/charged which works fine. As soon as the new parts were put on and the car was started, an unusual noise appeared. The mechanic said it is "bearing noise resonating from front of engine near pulleys" and upon looking at idler pulleys & serpentine belt suggested changing those. One pulley was in bad shape & the belt needed changing so we replaced both pulleys & the belt but the noise is still there and no one seems to be able to pinpoint it. It's sort of a roaring noise when sitting still & when driving the car. Upon turning on AC & accelerating, the noise is faster paced. Also, this morning upon entering the parking garage, I heard a squealing noise. I was going up hill in the garage and was not turning. Any ideas?
Monday, July 11th, 2011 AT 3:28 PM