How do you take off alternator tension on a 99 Mazda 626 v6 car?

To release the alternator tension on a 1999 Mazda 626 V6, first, locate the tensioner pulley, which is typically near the alternator. Use a wrench or ratchet to rotate the tensioner pulley counterclockwise, which will loosen the serpentine belt. Once the tension is released, you can slide the belt off the alternator's pulley. Afterward, you can remove the alternator if needed.