How to Replace the Serpentine Belt in a Nissan Altima

by Editorial Team

The serpentine belt is important on all vehicles. It drives multiple accessories and "snakes" around under the hood. For the 2.5L Nissan Altima, the type of serpentine belt system depends on the engine type. For the standard 2.5L, there is one true serpentine belt, a ribbed belt, driving the various accessories, and it has an auto tensioner to make replacement of the belt easy.

Step 1

Find the auto-adjusting belt tensioner. You can use your owner's documentation or a belt routing diagram under the hood--if provided--to find out where the tensioner pulley is located.

Step 2

Rotate the belt tensioner bolt with your wrench or belt tool to release tension on the belt. Bolt size may vary on different models.

Step 3

Remove the old serpentine belt.

Step 4

Use your own memory or refer to the routing belt diagram again to install the new serpentine belt, fitting it around all of the pulleys. Make sure the belt is seated correctly on all the pulley and that the ribs fit into the pulley grooves.

Step 5

Rotate the tensioner again to allow the belt to be installed on all pulleys, then release it to regain tension.

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