How do i install a serpentine belt on a 2004 Monte Carlo 3.8 liter turbo engine?

To install a serpentine belt on a 2004 Monte Carlo with a 3.8-liter engine, first ensure the engine is off and cool. Locate the belt routing diagram, usually found on a sticker in the engine bay, and use a socket or wrench to relieve tension from the tensioner pulley. Carefully remove the old belt and route the new belt according to the diagram, ensuring it sits properly on all pulleys. Finally, release the tensioner to apply tension to the new belt, double-checking its alignment before starting the engine.