In this guide, you will learn how to replace the serpentine belt on the Nissan V6 engine. This guide applies to Nissan and Infiniti cars equipped with the 3.5L engine manufactured from 2000 to present.
Park you Nissan. Engage the parking brakes. Allow your Nissan engine to cool down.
Open the hood of your Nissan. Look of the frame or under the hood for the serpentine belt routing diagram. It is often printed on a sticker found on the fan shroud.
Locate the serpentine belt tensioner on your Nissan. You will need to move the tensioner away in order to release pressure from the belt.
Take a few pictures of the old belt before removal in case you need to look at the belt routing latter.
Use a 3/8" ratchet to push the tensioner away(up) from the belt. To get to the tensioner you will either need to remove the passenger wheel or drive the car up on rams. This will allow you to remove the plastic cover on the wheel well to access the tensioner.
Remove the belt from the accessory pulleys by hand. The belt will need to come off several pulleys including, A/C pulley, alternator pulley, and crankshaft pulley.
Install the new belt on your Nissan by making sure it is routed as per the belt routing diagram. The last step is to slide the belt under the tensioner. Before you do that make sure to check that the belt is properly seated on all the pulleys or you will have a hard time installing the belt.
Typical applications include: