ctigerdan

This same thing happened to my car last week. I have a 2013. It was 2nd time it had happened and this time I drove directly to dealership without turning car off. It was lunging forward and eventually started smoking at which point the service manager told me we better turn it off. They had it for 2 days and fixed it (hopefully). Said it was a bad cylinder head temperature sensor..or something like that. Sensor was reporting that it was running hot and was revving to circulate coolant (at least that's how it was explained to me) and the smoke was caused by the engine compensating for the high temp by richening the fuel mixture hence the puff of smoke we saw from the oil burning. It would make more sense to me if he said the sensor was indicating cold temperature instead of hot. I hope it is fixed, but I am concerned that just a symptom was fixed, and not the cause....or do these sensors commonly go bad by themselves? I have never had battery issues although I have only had my C-max about a month. Bought a certified preowned. Hope this helps the Massie. I got on here just to see if this was common but yours was the only other post I could find. Did you take it in yet? Here is what is listed as on my invoice - Cause: Codes P0128, P128A, P1288. Performed PIN Point Test. Monitoried PIDS during test drive. Found CHT Sensor internal short. Correction: Replaced CHT Sensor and test drove vehicle Parts: SPO 8S4Z6G004A Sendsor AS