[bigfish95971]

Yea Table saw is good description, never heard a truck like that before. Got get your stethoscope out. Listen to things turning very fast, Turbo, Alternator, other pullies, Trani input and TC. Sounds a lot faster than engine rpm alone.
Load on alt may le tup from charge after start. Turbo blade or bearing. may be , pull hose and listen.
Maybe a boost, exhaust or other leak after delete.