chirping sound

what’s up fellas
got some chirping/ squealing sound on my ‘17 SR5

quick back story: it started making a chirping sound at cold start but would go away after warming up.

its been 50k miles since my last spark plug service so i decided to replace them, while i was at it i used some MAF cleaner to clean out the MAF sensor, and throttle body cleaner to clean the throttle body.

after doing the spark plugs, cleaning the throttle body and MAF sensor i start the truck up and the chirping/ squealing is there, louder and now it’s not going away after warming up

any help, ideas is appreciated

 

Serpentine belt is old and stretched out probably. Easy and cheap fix.

 

thanks

i’m at 172k miles on the original serpentine belt, should i swap the idle pulley and or tensioner?

 

UPDATE: the chirping has now gone away after driving for 30 minutes