I believe that it could be the timing belt tensioner pulley or idle pulley (bearings), but recently when i start my car there is a loud and annoying squealing noise that comes from under the hood. I have a 2g eclipse gs 2.0L non-turbo and before i begin disassembling the timing belt cover and other front end pulleys i want to know if anyone has had the same problem. I noticed that it sounded like the belt was slipping when i quickly revved my rpm's to around 5k, but now the squealing will come randomly whenever i'm idling for a period of time. PLEASE HELP!

 

Possibly time for new belts? Where exactly is it coming from? To get a better idea, you can use a tube or something as a stethascope and get closer to the problem...

 

If ur saying new timing belt then possibly, but the accessory drive belt is brand new

 

it might be that the belt was not properly tensioned. I had the same problem with my saturn. Baught a brand new acces. belt and a few days later it was already squeeling. I havnt even fixed it yet cuz im too lazy. But i guarentee its the acces. belt

 

The access. belt shows no signs of slipping or wear though and i tensioned it and greased the tensioner bearing. but theres a tensioner pulley on for the timing belt as well which is a cause for concern because it will be difficult to get the timing belt cover off without almost taking the entire engine out