Q: how to replace the serpentine drive belt

It is recommended that this repair be performed by a professional because all of the rotating elements, that is the bearing supported pulleys of which there are quite a few, should be inspected to be sure they turn freely and noiselessly. Also, the belt tensioner should be inspected. If doing this yourself, remove the engine cover, as needed, to gain access to the belt. Rotate the belt auto tensioner about 15 degrees or so to remove tension from the belt. Remove the belt. Inspect all pulleys. Any that are rough should be replaced to reduce the potential for noise and even belt seizure in a worst case scenario. The grease in these pulleys eventually oxidizes and dries out due to the heat from the engine. To install belt, rotate auto tensioner and slip belt over the pulleys. If you want these steps performed by a certified Mechanic, dispatched by YourMechanic right to your location, please request serpentine belt replacement/pulley bearing inspection and the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.