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2010 Nissan Armada SE
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Discussion Starter · #1 ·
Picked up a 2010 Armada about a month ago with 137k. There is a slight rattling noise that I have traced to the crankshaft pulley/harmonic balancer. When I take the belt off and start it without the belt there is no noise at all. It also looks like there is a slight (tiny) wobble in of the crankshaft pulley but only when the serpentine belt is attached.

Could that be a bad belt or tensioner? Never had an issue with something like this.
 
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