Ok so I have a 2011 Cruze LTZ 1.4L Turbo and I have only had one other time a problem of this thing overheating and it needed the new upgraded radiator hose connector underneath the hood fixed it haven't had a issue.. Until the past couple week but only off and on.. I will be driving and it hasent been blasting out Hot air like it's always have, it takes awhile and then it will stop, but wasnt overheating.. So last night driving to work I went to zip past a car due to running late and the car said AC Off high engine temp, and shot all the way over to the "H" ??? I scratched my head well that's weird, so I pulled over shut off the engine, then restarted it drove to work and it was fine. Drove home and it was fine it went over the half way mark once and then went back to normal.. Could this be the thermostat or sensor? The PCV does need replaced