How do you replace the serpentine belt on 1990 Chrysler 5th avenue?

To replace the serpentine belt on a 1990 Chrysler 5th Avenue, first, ensure the engine is off and cool, then locate the belt routing diagram, usually found on a sticker in the engine bay. Use a wrench or ratchet to relieve tension on the tensioner pulley, allowing you to remove the old belt. Once removed, 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, and double-check the installation before starting the engine.