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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.
Here's the thing. I did the "test", starting the engine and shutting it down to watch if it slows down and stops. Spun it freely by hand, no play, etc. Got tired of messing with it and took it to a local shop. Guy started the engine, increased rpm's a bit until it whined, then stopped the fan blades with a gloved hand (he and I don't recommend that lol) and presto! No noise.