I’ve been looking for answer to this question but have not been successful thus far. Where is the tension nut located? My belt is very lose and is making noises now and I need to tighten the belt. I believe the nut I need to loosen to shift the alternator back to tighten the belt is the bolt on the top of the alternator which is very visible when looking above the alternator is this correct. I don't have to jack up the car to tighten my belt do I. In other words basically how do I tighten my alternator belt?

 

hey it's the top bolt and no you dont have to jack the car up