Troubleshooting a chattering noise on the front of a 3.2 dodge engine. New belt and...

[Donald]

...tensioner pulley? Noise stops when alternator belt is removed. Alternator bearings are like new. Possible bad power steering pump? Noise is most apparent at and just above idle when first starting out. Has new gates belt and 2 different new idler pulleys. Seems to be gradually getting worse. Turning the steering wheel affects it very little. 2001 3.2 Thanks