Engine Chirp

[stang3O2]

My car just started making a chirping noise and it is coming from the motor. The noise is faster with more RPMs U=I can't tell exactly where in the motor it is coming from. What are the possibilities? It has 157000 miles on it
Thanks

 

[go-stang5.0]

I would check to see if your belt is old or loose. Also, check to see if anything is rubbing against a moving part while the car is on. Also, check the bolts on all your pulleys, they could be loose. Finally if you have a stick it could be your throw out bearing, even thought that sound would come from further back.

 

[JJ95GTID]

Another possibility are the bearings on the idler pulley and the belt tensioner pulley.

 

[DougNuts]

I agree with the other 2 guys, and also maybe your balancer is bad and rubbing on the motor?

 

[go.rei GT]

Another possibility are the bearings on the idler pulley and the belt tensioner pulley.

My guess is this or the TO bearing.
I was surprised how quiet it was under the hood after I changed my idler and tensioner pulleys. I didin't think they were making much noise, but with the new ones on there is a night and day difference (mine weren't "chirping" though).