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My engine is doing a weird and anoying whinning noise
3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
It sounds like an Idler pulley or tensoner. It is an easy and cheap fix. Replace the belt at the same time. Sometimes the belt will become chewed up or streched.