I have a 2009 Chevy Cobalt bought used a year ago from a dealership near me. It has about 81,000 miles on it and just recently started messing up. My coolant temp will start heating up to about 200F-206F when idle. The normal running coolant temp I had logged before all this was 190F. Then, whenever I start moving from a standstill, my car will lose the ability to accelerate with ENG PWR REDUCES message on readout. I'll park and turn off engine wait a while and turn it back on and I can drive again with coolant temps around 200F.
Does anyone know what could be causing this?
Taking it to AutoZone tomorrow to get codes. Just thought I'd ask.