How to change the Idler Pulley & Serpentine Belt on a 3.0L Ford Ranger (2007, Fix Squeak) 

In this video, I remove the serpentine belt, replace the idler pulley, and put back on the serpentine belt of a 2007 Ford Ranger 3.0L that has A/C. Make sure that when you are looking up parts, that you double check everything, I told Auto Zone my specs, but they still gave me the wrong belt, luckily, I didn't need the new belt.