My car started making a pulsing squealing noise when idling at red lights/stops. Squeals very loud when pulling out, then stops after acceleration. Starting to happen at almost every stop. Sounds like coming from near the wheels or under hood.
Any ideas /o/? '99 Toyota Corolla if that helps.
Thanks you guys are great!
Idler pulley?
Cat stuck in belt, or just belt.
Probably has to do with belt tension, Toyota opted out on loaded belt tensioners on certain parts of the belt drive for economy cars so full accessory load at idle tends to make them skip and screech. Try turning lock to lock with a/c full blast at idle, that will usually be the easiest way to make it act up.