In the descriptive sense, people speak of luck after events that they find to be fortunate or unfortunate, and maybe improbable. Therefore, cultural views of luck vary from perceiving luck as a matter of random chance to attributing to such explanations of faith or superstition.
Chirping can be due to misalignment of the drive belt, but could also be due to pulley misalignment, worn pulley bearings, worn belt ribs, contamination from oil, coolant, power steering fluid, brake cleaner, belt dressing, or other substances. Squealing is usually caused by slipping between the belt and the pulleys.
Perfectly Normal Baby Breathing Noises. So after some time observing your precious bundle, you'll begin to see that he really does make lots of different noises, that are generally no cause for alarm. Some sounds you might hear include: Gurgling: This is due to saliva pooling at the back of the mouth.