This morning I go to warm up my car and start it up and let it warm and all of a sudden while in idle I hear a rattling/squeaking sound coming from the engine. I have been pretty light on the engine. I only have 2500 miles on her. It went away but this noise I have only heard on older cars while idling. An oil change is coming up so I guess i'm gonna have to point the noise out to the service dept when I go in. It may be the belts that is my thought I did not have time to play with it.