Update! I pulled the belt and started her up, no noise. Thanks toms89!! She was quiet as a mouse. It ended up being a bad bearing on the belt tensioner pulley. $35 dollars later and a new belt, $25, she's as good as new. My heart palpatations have gone away, easy fix. Thanks guys for the help.
Thanks guys for the replies, I'm going to pull the belt this weekend and see where I'm at. I'm keeping my fingers crossed it's a pulley or accessory issue...yea right. I'll keep you updated on what I find.
Hey Guys,
Well, I'm experiencing a pretty bad engine noise. Can you help me diagnose it? I'm thinking it's something to do with the cam tensioner/phaser/etc. Truck is a 2006 Expy, with 76,000 miles, 4wd. Here's a quick video. HELP!!
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