yes, at times a belt just screams no matter how tight. I was doing some tractor work and the neighbor was working on a car. I saw they had the power steering pump out for a replacement. I took a look at the pump and told them there was nothing wrong with it, put it back in. They did, fired it up and it screamed, the look was I told you so. I told a young man to go get a bar, rubbed it on and it was instantly quiet. The looked at me like what in the hell, laughingly I said, that will be 60 bucks lol.