userface Posted May 25, 2019 Share Posted May 25, 2019 (edited) Does anyone know if this is coming from the A/C compressor or the idler pulley? It only happens when the A/C is turned on. Short clip with audio: https://www.youtube.com/watch?v=ucJ_VhZuefY At first when the A/C was turned on the A/C belt would move/turn slowly and make the loud sound. I removed the clutch and one of the small washer shims and now it turns at regular speed when the A/C is turned on though the loud sound is still there. If it's on the A/C compressor is it one part I can replace? The belt is new and the idler pulley is fully extended. Edited May 25, 2019 by userface fix link, add information Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted May 26, 2019 Share Posted May 26, 2019 It's either inside the compressor or it's the compressor clutch bearing. Either way - replace the compressor with a junk yard unit. GD Quote Link to comment Share on other sites More sharing options...
userface Posted July 14, 2019 Author Share Posted July 14, 2019 It turned out to be the Harmonic Balancer that needed to be replaced. 2 Quote Link to comment Share on other sites More sharing options...
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