Has anyone Experienced a whine from the front of a 5.9 common rail  seems to sound like the fan truck is a 06 6 speed

I did after my truck sat for too long and not starting it often enough. That particular truck goes on long trips so I changed the idler pulley wheel and bearing along with the water pump, thermostat and coolant, the 'whistle' kind of a squeal went away. Running long distance on remote highways and byways I need to keep it trouble free. The worse thing is not starting it up once a week.