2003 Cadillac Cts
I was sitting outside of a parking lot in my car idling waiting for a friend to come out and all of a sudden DIC goes : engine temp too hot, idle engine. I turned off the car and stepped out to see the level of my coolant , no problem , no leaks.. I got an 03 cts with 203,000 kms. Keep in mind I just serviced my throttle body and cleaned all the gunk and carbon. Any suggestions?