How do you loosen and tighten the AC Compressor Belt on a 2000 Infiniti I30?

To loosen and tighten the AC compressor belt on a 2000 Infiniti I30, first locate the tensioner pulley and use a socket wrench to rotate it counterclockwise, which will relieve tension on the belt. Remove the belt from the AC compressor pulley and inspect it for wear. To install a new or adjusted belt, place it around the AC compressor and other pulleys, then use the wrench to adjust the tensioner back to its original position, ensuring the belt is securely in place. Finally, check the belt tension and alignment before closing the hood.