Just A quick observation, i have owned many volvos, and known many people with volvos, specifically 240s, when started the car makes a strange chirping-while the engine is cold and becomes dead silent when warmed up. I was wondering if this sound is the water pump bearing? or some other component. I enjoy my car and the ride very much even at 202,300 miles it feels brand new. But there is more satisfaction of knowing what every chirp and whistle is. thanks for your insight.