I'm still trying to get rid of my engine chirp. The belt was chirpy when I bought the truck, and two days later the serpentine belt went out... completely shredded. I replaced the belt and the chirp was still there. Since replacing the belt I have replaced the idler pulley, tensioner, and tried a spare alternator that I got from a pic a part. The chirp is still there... Now, the chirp does increase in intensity when I turn and accelerate. Could the power steering pump pulley being going out of alignment when I turn. I wouldn't think so, because I have to be on the throttle and turning to get the chirp really loud. I haven't tried cleaning the pulleys. So I'll give that a go. Should I try a different belt before I start replacing other pulleys?
