How do you remove the belt tensioner on a 1994 Oldsmobile delta 88?

To remove the belt tensioner on a 1994 Oldsmobile Delta 88, first, ensure the engine is off and cool. Use a wrench or socket to rotate the tensioner pulley counterclockwise to relieve tension on the serpentine belt, then slide the belt off the tensioner. Remove the mounting bolts securing the tensioner to the engine and take the tensioner off. Finally, replace it with a new tensioner, reattach the mounting bolts, and reinstall the serpentine belt.