How do you loosen serpentine belt tensioner on 93 Chevy silverado?

To loosen the serpentine belt tensioner on a 1993 Chevy Silverado, you'll need to use a wrench or ratchet on the tensioner bolt. Turn the tensioner counterclockwise to relieve tension on the belt. Once the tension is relieved, you can remove the serpentine belt from the pulleys. Make sure to note the belt routing for reinstallation.