I have a 2008 6.4 that I've owned for maybe 3 weeks. Well I started to notice a squeal in the mornings, only when the turbo spooled. Well lately it will still squeal but there's also a loud wooshing sound. Sounds like the fan, but doesn't change sounds even the truck shifts or anything. The more boost, the list the wooshing. I'd this my turbo going out? Wheel? Exhaust brake? What's going on. I'm fixing to get rid of the egr and dpf/cat. Could it be related to the egr? I'm new to 6.4 so I'm totally clueless.
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