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2007 Cloud White Xterra S
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Discussion Starter · #1 · (Edited)
Hi,
Ever since I bought my Xterra (2007 S) a couple months ago, I’ve heard this noise from the engine bay. I took it to local mechanic right after I bought it for general maintenance and he didn’t mention anything about the noise (although I didn’t ask). He said everything looks good and the previous owner took good care of it. It does drive nice.

Can anyone identify this noise? I’m worried it’s a timing chain issue which I’ve read cost a ton to fix. Maybe the alternator...Or is this a normal sound?

Thanks!

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That sounds like it could be the tensioners to me. It could also be an accessory bearing. Remove the serpentine belt and start the X if it’s still making the whine then it’s likely the timing chain guides.
 
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