overheating woes

Yep. My T stat on my 2008 HHR failed open this winter as well. Engine temp is supposed ro run about 195°-200° it always used to get up to temp real quick. I could get the defroster to work before going the 6 blocks to get out of my neighborhood. This winter i would get to work and the temp would be about 145° yep stuck open T stat. Replaced that, and temps back to normal.