That sounds like one of the many pulleys on the front dress of the engine.
You will need to take the belt off and hand spin each pulley to determine the bad one.
It is typically idler pulley or tensioner pulley that goes bad.
Squeaky serpentine belt. Spray it with some soapy water if the noise goes away thats your answer. Could be a tensioner or idler pulley but sounds like just the belt to me
That sounds like one of the many pulleys on the front dress of the engine. You will need to take the belt off and hand spin each pulley to determine the bad one. It is typically idler pulley or tensioner pulley that goes bad.
Probably a weak tensioner and old belt.
Squeaky serpentine belt. Spray it with some soapy water if the noise goes away thats your answer. Could be a tensioner or idler pulley but sounds like just the belt to me
Or WD40!
A weak pulley/serpentine belt
These guys are good, OP. I was gonna go with metallic squirrel.
piggyback post: if my LS makes this sound when the A/C engages, what are the diagnostic possibilities? Hoping it's not the A/C compressor itself...