Thread: Knocking sound
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Old 01-04-07, 10:11 PM
Lanzz Lanzz is offline
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Cadillac(s): 2006 DTS Performance
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Re: Knocking sound

Same noise in mine - always when the car is not quite up to operating temperature. No idea what it is, but I read somewhere on this site that it is something that is normal so I never bothered to ask the dealer. I have 9,000 miles right now, has done it since it was new.
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