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?