How do you tighten alternator belt on 2001 Mazda mpv?

To tighten the alternator belt on a 2001 Mazda MPV, first, locate the alternator and loosen the mounting bolts. Then, adjust the alternator's position to increase the tension on the belt. Once the desired tension is achieved, re-tighten the mounting bolts securely. Finally, check the belt's tension by pressing down on it; it should have a slight give but not be overly loose.