How to Replace a Serpentine Belt?

Each vehicle has its own way of changing belts, but generally you can replace a serpentine belt by using a socket wrench to turn the belt tensioner to loosen the serpentine belt so it can be removed; then the new belt can be threaded around the belt guides as the diagram on the hood often illustrates. Use the socket wrench to keep the tensioner loose enough to get the belt through all the guides.