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Squealing sound from right side of engine

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The vehicle is a 2006 Chrysler 300 with a 3.5l V6. It has 162,000 miles on it. I am having an issue where a very loud squealing is starting to occur somwhere in the engine on the right side passenger. THe noise has been happening here and there but becoming more frequent. The squeal happens under 2k rpm typcially while decelerating. The noise will go away if you rev up the engine. I have taken off the drive belt with it running thinking it was a pulley but the sound was still present. Then I turned my attention to the timing tensioner pulley believe it was that so I changed the timing tensioner, belt, and water pump. The noise is still happening and I cannot figure it out. Seems to happen more so when the engine is up to temp. 

 

Does this engine have a cam shaft bearing?? Any thoughts?

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Oh they all have camshaft bearings but they don't squeal. But if you remove all the fan belts and just let it idle and you still get the noise then it is probably something inside the transmission like a bearing that's worn

I dont think its transmission related. The noise is coming from the engine where the valve cover is on right side.

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