New to the 2.0L. Can anyone tell me if this "loose nut" rattle, that seems to be coming from inside the oil pan at 1,405 RPM is normal for the 2.0L. It is not present at 1,000 RPM or over 1,500 RPM. Did not notice it during the first month of ownership. Seems to be getting louder and the vehicle is idling near or @ 1,400 RPM more often, especially when first started up in hybrid when the ICE hasn't been used in a while. This goes on for over 2 minutes before the ICE shuts off on its own. Oil pump pickup tube rubbing on the pan maybe?