Chirping

subaru
impreza

#1

2007 Subaru Impreza 2.5 with 71000. When the engine is cold it sounds like a bird chirping and get progressively louder then stops after 10-15 seconds


#2

Your serpentine belt is most likely loose or badly worn and in need or replacement.
It is possible that the belt tensioner is going bad.
Or, it is possible that a bearing in either the belt tensioner or the belt idler pulley is going bad.

If a bearing in the tensioner or idler pulley seizes up, you will likely lose the belt and wind up stranded.
A visit to your mechanic is needed at this time.


#3

Belt has been replaced 11,000m ago and tightened about 2 months ago the chirping stops for a couple weeks then came back.