I have a 2012 Toyota Venza. I was driving on a road about a week ago and hit a nasty pot hole. On Monday, I noticed that the engine sounds slightly louder when I accelerate. This is particularly noticeable when I accelerate at higher speeds, say going from 50 to 65mph. And the noise seems to be coming from the front of the car, though I can't be positive. It is still quiet when it idles and when it is in park and I give it a little gas, I'm not getting the same noise. If actual acceleration has been adversely affected, it's negligible; the car doesn't feel like it's struggling to go faster. Basically, I want to know if this is something that can be explained by weather fluctuations (cold/warm) or normal wear and tear, or if something got bounced too hard when I hit that pot hole. I have an appointment to bring it to the dealer the day after tomorrow, but I'd like to have an idea before I go in there.