Help! Exhaust sounds loud and bad gas mileage?
I have a 2006 S AWD w/ about 80k miles. Recently the exhaust has been really loud, not when idling but when accelerating and starting. At first I though it was an issue with the muffler but I just had my car inspected and the muffler/exhast system is fine.
Since I noticed the loud sound, my gas mileage has also been poor. I am not sure if it is an issue with the gas mileage or the gas gage itself, because when the low fuel light comes on and I fill up, I am putting in about 2 gallons of gas less then when the light would come on before.
I am thinking the loudness and the gas mileage issue are related. Does anyone have any idea what this could be? I am going to take it to my mechanic but want to have an idea of what I am walking into before doing that.