This is really starting to get old. I feel like my Fiero has been re-incarnated into my Solstice. This car has been problem after constant problem. I've noticed lately that my car has been running a little cooler then usual. Going as low as 194 degrees and only getting as hot as 201. Something I wasn't too concerned about because I figured it was my tune doing it's job...turning the fan on at 196, medium at 198 and full at 199. Well, this morning on the way to work I realized it's my thermostat. My car wouldn't get over 198 and got as chilly as 186 during coasting (DFCO). So I would assume that it's my thermostat. I've been on the fence about what I want to do with my car...keep it or sell it. This might just make up my mind for me. I was all set to redo the door panels this winter and the seats....and put a new timing chain on it, but I might just off it now. I'm tired of every month something else is wrong with it. All I can come up with is that the PO didn't take care of the car. I realize a thermostat is a maintenance item, but I've had so many other issues, my perma-grin is starting to turn upside down....