I heard a whinning noise coming from the engine that didn't sound normal. I then took it by the dealer to let them listen to the engine. After they listened they said it wasn't normal and took it back in the shop. They said it was coming from a valve that needed to be replaced. When they took the valve cover off they discovered a dead mouse under the valve cover that had crawled up in there. I had heard of this happening to others but this is the first time I have ever had a critter crawl up into my car.

into the air box and leave seeds. Had to put some mesh over the opening to keep it from coming back in.

Getting all the way under the valve cover takes some skill...(or a lack thereof)

-clemsongt