This engine is the strongest point of the Stinger. It's almost bulletproof. Kia has tuned it conservatively (heh, who'd know when you punch it, right?
). So, I'm sure that some ancillary item is failing or needs to be tightened back up, like a hose clamp; or replace a hose, or as suggested a thermostat. At this point, unless you ran over something, the radiator is going to be solid, and all the hoses should be too, for a long while yet. They'll find it, probably right away, and you'll roll thousands upon thousands of miles without any engine issues. The odds are in our favor!
