Originally Posted by ybbiz34
I don't know if I'm just paranoid/especially sensitive lately or what but I've noticed that while at idle after driving for a while, or cruising between 20-40 mph, it seems as if engine noise has increased (vague, I know). No real difference in sound/new noises, just louder. Even with music cranked up fairly loud, I can still hear it. I'm guessing this is insignificant but I'm just throwing it out there for comments.
also just throwing it out there, but, maybe the radiator fan is working harder?