I have a 2002 Forester Auto AWD that has 206,000 miles that has just stared making this loud "spaceship" like vibrating noise when i start it and when I accelerate. It stops when I am coasting or brake. There are no dash lights on and i am religious about maintenance. We just replaced both O2 sensors right before this started. Any ideas as to what it may be? Video to sound here: https://vimeo.com/823827016?share=copy
Last edited: