So i started hearing a real loud squealing after i installed my underdrive pullies.
And after seafoam. I did some searching and saw the cam sync. I parked the truck and replaced that. Still squeals.
The fan clutch was pretty loose so i replaced that. Still squeals.
I replaced the belt when i did the pullies.
Any ideas guyys?

truck is an 01 3.0 4x4 with 163k miles

 

i have heard and experienced on different cars the pulleys squealing after installing under drive pullies. especially on cold mornings. i was told it is the pulley itself?

 

Thanks
I figured out it is the tensionor pulley