How do you remove the tensioner pulley on a 2004 Ram 2500 4x4?

To remove the tensioner pulley on a 2004 Ram 2500 4x4, first, disconnect the battery to ensure safety. Use a wrench or ratchet to rotate the tensioner arm counterclockwise, which will relieve tension on the serpentine belt. Once the belt is loose, remove it from the pulley. Finally, unbolt the tensioner pulley from its mounting bracket using the appropriate socket or wrench, and then replace it as needed.