I have a horrible sounding noise coming from my engine (i think). It's an '03 Z... Basically it's sounds like metal grinding on metal mixed with a wining noise. It's onlt when I'm moving and it's not constant when I'm moving. I hear it whether I'm going straight or turning and more when I'm going slower (like not on the highway). Anyone know what this is?? A belt maybe?? I drive 20mins to work everyday and I can't get an appointment until next week. Just wondering if I should continue driving it or not?