Fan pulley is crooked

The fan may be bent and damaged if it is rubbing on a lower pulley. You can try to remove it if it is loose and retightened it by spinning it on to see if it will straighten, however you may have some difficulty as there is a special tool for holding the fan pulley so that the fan can be removed. If the fan is bent or damaged you will have to replace it. Also, if your fan shroud is badly damaged I would replace it not only does it tunnel air but it also protects the fan from objects that are kicked up from the road. Also cracks and holes in the shroud my have been caused by the fan if it's position is not correct.