I would give it five stars but it took me 3 times to order it before I finally got it. When I finally got one and installed it, it worked great and was quiet. I had previously bought a Cordon pump and it was bad to install and worse than the one I replaced it with so I went with this Acdelco part and it's so much better. Stick to OEM parts like Acdelco for GM and you can't go wrong.