I bought this 2010 aveo that was wrecked. It was hit lightly in the back quarter and enough in the front to replace the fender and bumper cover, but no frame damage. Since I got it on the road, it has the smell of brake fluid burning. That's what it seems to me. I'm not losing fluid, no leaks that I see either. It also randomly sputters. Doesn't shut off on me, but sputters usually more at lower speeds and taking off. Any ideas?