How do you change a serpentine belt on a 1986 Pontiac Fiero GT 2.8 V6?

To change the serpentine belt on a 1986 Pontiac Fiero GT 2.8 V6, start by locating the tensioner pulley and using a wrench or ratchet to relieve tension on the belt. Once the tension is released, remove the old belt from the pulleys. Route the new belt according to the belt routing diagram, ensuring it fits snugly over all pulleys. Finally, reapply tension to the tensioner and double-check the belt alignment before starting the engine.