After two days in the shop, my car is finally repaired. I had a broken EGR tube. From what I understand, it is part of the exhaust system so that's why my car sounded like a Harley.
Since I had a rental car for a couple days, I got to enjoy the latest luxuries of a new car. For fun, I figured out that I could afford a new car if need be. And since I've had horrible experiences with Ford, I would go for a Japanese car. Right now, my heart is on this baby:
A 2007 Toyota Corolla.