1998 Bonneville A/C Compressor Rattle - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 05-27-2012, 11:54 AM   #1
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Default 1998 Bonneville A/C Compressor Rattle

The A/C compressor on my 1998 Bonneville sometimes makes a metallic rattling sound when the compressor clutch engages. The system cools as expected; the rattling sound is intermittent, i.e. is not always present when the compressor is engaged.
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Old 05-27-2012, 01:40 PM   #2
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Here is a writeup from Dan Thurs that may be a match to address your compressor noise:

https://www.gmforum.com/mechanical-134/adjust-ac-clutch-plate-278951/
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