C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Noise from AC Compressor??

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Old Aug 27, 2008 | 09:01 AM
  #1  
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CSM87
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Default Noise from AC Compressor??

Happens with the car idling (87 Auto) in drive with my foot on the brake. I get this loud “clattering” noise from the area of the AC compressor when it cycles. When in park or neutral, the noise is inaudible. I took the car to a reputable AC specialist who said the noise is not the AC compressor and the system works just fine, which it does.

Any ideas?
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Old Aug 27, 2008 | 09:46 AM
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From: Canandaigua New York
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Sure it's not your heat riser making the noise?

The spring wears out and breaks and the riser sits there and rattles at idle.
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Old Aug 27, 2008 | 02:21 PM
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From: Plantation Florida USAF(Retired) 1966-1990
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Check you belt damper, could be the problem!
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