I drive a 2013 honda civic manual transmission.
On my way to work tonight, I got off the hwy and was stopped at a light in the off ramp. When I went to go into first gear I was letting out the clutch and applying the gas and I heard a thunk noise, right after this my car seemed to be sounding much louder. As if I was revving it loud or had an exhaust leak is how I’d explain the sound. The gages on the dash don’t show it revving high however.
I had to stop at a few more light before I got to work and it never made the thunk again but continued to sound louder than usual. I’m not sure what this could be and am concerned to drive home now when I get finished as I commute 1 1/2 hours of highway driving.
What could this be?