Review on ACDelco Professional Drive Belt Tensioner Assembly 38404 for Enhanced Engine Performance, featuring Spring and Hydraulic Damper by Luis Blaschko

This was a perfect match for the factory tensioner that ultimately let me down. This is by no means an easy setup. You will need to remove the lower motor mount and the upper motor mount and then lift the motor from underneath. If your car has an automatic transmission, you'll have to play around with the height of the engine until you can twist it out. I STRONGLY recommend that you purchase the belt tensioner tool sold here, you will need it to remove your old one. This one comes with a utility pin installed, so it's already preloaded/packaged, which is nice. At the same time I changed the compressor pulley in mine so it was easy. If you don't feel comfortable just changing the oil yourself, buy the part and have a professional do it for you.