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Old 02-04-2008, 03:42 PM   #1
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Default SC question???

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Posted: Mon Feb 04, 2008 2:40 pm Post subject: SC question???


When the car is at idle it has a knocking sound, when I removed the SC belt the knocking sound went away. Put the SC belt back on and knocking sound returned at idle. When I increased the rpms the SC quieted down to where the knocking sound was inaudible. Turned the car off and removed SC belt again and moved the pulley back and forth and felt some "slop" both ways before feeling the SC catch. What could the problem be? Also, the knocking sound does not occur at start up and becomes much more frequent the longer car runs. It definitely sounds like a rod knocking, but eliminated that when bypassed the SC. Any help would be much appreciated. Thank you very much. Bryan
1996 Bonneville SSEI, bone stock, 193000 miles
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Old 02-04-2008, 05:05 PM   #2
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Replace the coupler.

Pick your poison. Sealant, two bottles of oil (supercharger oil only), and a coupler.
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