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Old 11-08-2005, 04:33 PM   #1
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I am getting a "rattling" sound on start-up in the morning on my Bonneville - sounds like a random tapping noise? The car has only 30,000 miles. It is under warranty so I have to get it in to the dealer but has anyone had a similar problem and if os, is this anything serious?

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Old 11-08-2005, 04:36 PM   #2
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Couple things come to mind..

Cat converter shield weld broke
Pulley bearing
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Old 11-08-2005, 05:48 PM   #3
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If it'* only at idle, it could be a SC coupler. 30k would be the earliest worn coupler I've heard of though.
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Old 11-08-2005, 06:51 PM   #4
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I don't hear my 03 SSEI doing it, but I have a company van (Venture) that does it. My last bonny (93 SSE) did it and I hated that noise.. They replaced that Cat. Converter and it didn't help. FYI..

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