Hello! My car just went in to the mechanic for a new muffler. I wasn't experiencing any noise but my mechanic said something was wrong and I needed a new one. Today, I received my car. When I turn my car on, it makes a loud steady roar like a race car, and same for when I accelerate. I never had noise like this with my car and I'm now scared it is the transmission or something bad. Any ideas of what this could be? Possibly a mess up with fixing the muffler?
My car has 63408 miles.
My car has an automatic transmission.
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing