OK, I have been having this engine noise for about 500 miles. SO about 3 or 4 weeks now. I am hearing a grinding/bearing noise. The issue is that it is not constant. I never hear it at idle and I hear it at WOT sometimes. When I do it is obviously loud. I hear it alot when the engine is cold and I am cruising at 80 with the tcc locked. As soon as I let off the gas and unlock the tcc it is gone until the tcc locks up again. I can vary the tps and under very low tps, it is gone. At about 10% or so, I can hear it. I hear it less when the car is warm, but the sound is still there. I am thinking about driving the car with out the s/c belt to see if I can narrow it down, but i am unsure it is a pulley or a bearing in the s/c because it does not happen all the time. Can I get some direction on where to look?