Crankshaft Pulley on 2001 Nissan Pathfinder

I had belts replaced 2 years ago b/c of squealing (when it is below 45 degrees outside). The pulley started to chirp/squeal around a year ago for first 30 minutes after it is started, but stops when you push on gas in gear. As time goes on the noise gets a little louder, especially in the morning. Could it be the bearings going bad in the crankshaft pulley? If not, can you spray something on the pulley?

Asked by for the 2001 Nissan Pathfinder
Were you able to find the noisy bearing? Was it the tensioner pulley? Or something else?
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