01 5.3L Vortec engine squeal

[Renslip]

Hi guys I have a 01 Sierra 1500 4x4 with the 5.3 and it has developed a squeal. It doesn't matter if it is in 4x4 or 2wd, at a standstill or driving down the highway. The frequency does increase as the truck accelerates but I cant seem to pin down the exact location. I'll try posting an audio clip from above the fan cover, let me know if you guys have any ideas

 

 

[oldscsc]

Pull the belt off and spin each pulley by hand. That should pin down your squeal. Check your belt for minor cracking and dry rotting while you're in that area (don't forget your AC belt!).

[scooby5121]

Water pump or idler pulley going.....

IMO

Scooby