My mom started are 01 GT and I hear this horrible sound which increased with RPM's that sounded a lot like rod knock or maybe a lifter or something not quite sure. Here is a video clip of the sound, my mom is freaking out about it because we don't have much money. Yesterday I also had to add some oil to it and it drove fine till today. Any help would be appreciated because I am not sure whats wrong. I'm thinking it probably isn't worth the money to fix because the Tranny is going bad in 3rd and 4th is surges when you add little throttle. Its has 160.xxx miles, rusted all to hell under it. Shame because its a Special Edition and I love the way it looks.
Here is the clip:
