Thread: rattling noise
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Old 10-31-2004, 06:10 PM   #14
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Join Date: Aug 2003
Location: Downers Grove, Illinois
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Originally posted by dwp
My rattling noise started a couple of weeks ago. It seems to do it only in the morning when the engine is cold. And then after ideling for 5 mins. it's quite. Sounds like a Mercedes deisel, when it's making the noise. It seems to be coming from under the rocker arm cover but when I pull the oil filler cap off there is no extra noise coming from the opening.
It's a 98 SL2 with 103,000 miles on it.
sounds like a timing chain starting to go. i would say use thicker oil, but winter is coming.

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