Check the bearings in the idler pulleys for wear & looseness. My fan bearing was wobbling around so much, the bottom edge of the fan pulley was rubbing on the block. Ugly noises. The smaller idler above the alternator is also worth looking at. Might as well check out the tensioner itself. I understand they get hard & take a set. Much discussion in the archives.

After reading all the books on how to sneak in behind the radiator, I just decided to pull the rad. Much more room to work. Three hoses, the two AT fluid lines and a couple of clips and it's out. Fifteen minutes to pull it the first time ever, and ten to stick it back in. Well worth the scraped knuckles and the chance of sticking a wrench into the core. It also gave me a chance to look into the health of the radiator hose necks and try to look at the inside.

HTH,

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Norm in NJ
Next oil change at 230,000miles