I just changed the alternator but all of a sudden there is an unbearable squeek from the front of the engine pulleys. Question is which one that is. Can be the tensioner, the new waterpump which would be weird, the alternator or the crackshaft pulley or the one below that which I do not know.There was smoke coming fro m under the hood as well but still could not see from which pulley. How can I make sure. The alternator spins really smooth and does not make sound neither does the tensioner if I turn it on its own. How can I eliminate?