I was checking the oil level of my car today when I realized that the two hoses under the intercooler were disconnected. I don't know how it happened. I've driven a lot and I think maybe at least 1800 miles with them disconnected (a road trip home and back), both hard and easy driving. But my main worry is how does this affect my engine? What exactly are the purposes of those hoses. It seemed fine without them... so I was wondering if I did any damage to my car driving it with them disconnected. Should I take my car to the dealer to get it checked out? Any input would help. Thanks.

Ajin