WTF is this squeek?

[x MadMAX DIESEL]

Okay I have been getting this very anoying chirp/squeek for awhile now. Not sure what it is.

Chirps right after I let off the throttle on a WOT run, and just heard accelerating at half throttle?

I really don't think its the turbo because it just happened at half throttle

 

[LBZ]

Fan belt.

 

[wes06dmax]

Could it be a U joint were does the squeek sound like its coming from

 

[wdino73]

Check your tension pulley on the engine drive belt, mine does it some too, that's my 2 cents. if u need any help with it call me,