A chirping noise coming from the timing belt area can be caused by a misaligned, or tilted idler pulley.
Average mileage: 76,883 (43,000–123,000)
Engines affected: 2.4L 4 Cylinder, 3.0L V6, 3.5L V6
16 people reported this problem
When I turn on my car there is an obvious chirping from underneath the hood by the timing belt. When the car warms up, the sound is eliminated. It has been happening for quite some time but hasn't been as noticeable as it is now.