Anyone have an idea what this noise is under load?

[jshalala]

http://static.photobucket.com/player...2189776835.mp4

Hope you can hear it. It is a whining, howling noise in the background. It changes based on the rpms. I don't hear it under 1000 or over 2000 rpm. Any ideas?
Is the anything under the hood that would make that sound?


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[Toms01PSD]

Turbo? That's what it kind of sounds like to me anyway. Chipped? Stock?

[jshalala]

Originally Posted by Toms01PSD

Turbo? That's what it kind of sounds like to me anyway. Chipped? Stock?

stock turbo. its not the normal high pitched turbo whistle. its more of a whining sound under load

[jshalala]

@ toms01psd, I think you are right man. lol i watched a couple other videos of some other trucks and the noise is the same. I switched to a cowl induction hood a couple weeks ago and it has no insulation inside and is raised higher for the cowl. I think I just hear things I never heard before when the insulation was there thanks for the input though man!

[Fordman99]

sounds normal to me i had some bad diesel that made all types of noises that freaked me out a lit while back if its a new noise wait and see what happens my 2 cents

[jshalala]

Yeah we decided that it is just the turbo making noise that the stock hood and insulation covered up. Doesnt bother me anymore. I have a 1.0 A/R exhaust housing, WW, non ebpv pedistal and 4 inch downpipe on the way...so its just going to get even louder