So my car broke down on the interstate. I'm trying to start it but it just won't start. I turn the key and I hear the typical sound that you hear just before the engine starts. You know, that whirring sound of the starting to turn. But that's as far as it gets. It won't finish turning over. Could it be my fuel injector or something like that? 09 cobalt lt 2.2 with over 100,000 miles on it.