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Message: <blockquote data-quote="wneumann2" data-source="post: 21353" data-attributes="member: 7672">Update: The issue is fixed, although now there is the slightest whining noise that changes with engine RPM. It may be completely normal though... almost imperceptible. Here's what I did since last post:1. Replaced both cam phasers and lower timing chain sprocket2. Replaced balance chain as well as all 3 balance chain sprockets plus chain guides. Chain was noticeably snugger afterwards. I also replaced the sprockets with the new Cloyes design which doesn't have the OEM cushion rings, which could have been the source of the noise I suppose.3. Replaced timing chain oil sprayer4. Thoroughly cleaned out PCV orifice. No idea which of these changes fixed the issue, but I will say it runs smoother than it ever has.</blockquote>