How do you adjust the tension pulley on 1991 cavalier?

To adjust the tension pulley on a 1991 Chevrolet Cavalier, first, ensure the engine is off and cool. Locate the tensioner pulley, which is typically near the serpentine belt. Use a wrench or socket to turn the tensioner bolt counterclockwise to relieve tension on the belt, then adjust the pulley as needed. Once adjusted, make sure the belt is properly aligned and retighten the tensioner bolt to secure it.