You will have to remove the drive belt to change this pulley. Once that is done replacement is easy. The free video instructions by Kent will show you how to do this as well as the proper way to remove and replace the drive serpentine belt. Torque specs are included.
Product Details
To test remove the belt and spin the pulley. If it feels rough or you hear noise - replace the pulley or as an alternation you can replace the entire tensioner if you suspect that has lost some of its spring. The pulley should also be replaced if the surface is rough as shown below.
New pulley installed - now quiet with a smooth surface.
Related Products:
M112 M272 V6 M113 M273 V8 Belt Tension Release and Drive Belt Install Tool Set
Includes a long custom bent 3/8 extension, correct socket, plastic mirror, and locking pin. You add another 3/8 extension to make the job a snap. Watch the video below for a full explanation of this tool and how it works.
2000 to 2006 M112 V6 and M113 V8 Belt Tensioner with Pulley
Quality aftermarket part. If over 80,000 miles, replace this part when you replace your serpentine belt. Kent's custom tensioner tool is available separately below to help make the install of this new tensioner a "snap."