I opened the hood today and started the car just to see if everything works fine. But to my surprise I noticed that a sharp sqeaking noise came from one of the pulleys. I cannot pin point which one it came from, but once the car is warmed up the noise went away. Should I be of concerned as one of the bearings is going bad, or is it normal when you first start the car. The car has been sitting most of the time recently since I have been out of town much of the last three weeks. Any suggestion as to what to do will be appreaciated. BTW it is my R129 that I am refering to .