2001 silverado random chirp

[jkl72-40]

4wd bout 90k miles chirp comes from under truck has nothin to do with motor only does it when moving..

 

[dvdswan]

only thing I could think of is a worn tensioner and the belt slips when the a/c kicks on.

 

[The Orange Ram]

Could be u-joints, they chirp when they are about to go but better get them fixed soon cause when they go...so will your driveshaft