How do you install a serpentine belt?
Using the serp belt placement tool, route the new belt around the belt path. Rotate the tensioner again while you load the belt around it. Wrap the new belt around the crankshaft pulley, then around the grooved pulleys. Finish the job by sliding the belt onto a rounded, non-grooved roller. via
How much does it cost to change a serpentine belt on a Nissan Altima?
The real cost is in the labor, because a lot of parts need to be disassembled to get to the belt. Shopping around to get a few quotes is your best bet to get the best deal, but you can expect to pay anywhere from $409 to $919 (including parts and labor). via
Is Nissan Altima 2009 a good car?
The Nissan Altima is among our better rated family sedans. The 2.5-liter, four-cylinder delivers better performance than some six-cylinder engines and an impressive 25 mpg overall. The 3.5-liter V6 is very powerful yet delivers 23 mpg overall. via