OK, so I fixed the car not starting problem but now I have noticed that the car drives louder than normal. When it idles the engine just sounds louder. once I start accelerating then it quiets down some but the car is just louder than it was last week. I checked the oil and it looked a little low so I put in a quart, but there is no difference in the volume level of the car. I know it is about due for an oil change, but that have anything to do with how loud the car is when it is on? There isn't a specific sound or noise or whistling, the engine just sounds louder when the car is turned on. Any ideas??? Thanks!