While sitting idol my car is still trying to run hot. You guys replaced the ignition switch this last time and we thought that took care of it. I purposely let it sit running to see if it would start to run hot and it did. I started driving it from its idol position and the temp went back down. Not sure what this could be, but I have to sit idol often coming from work in traffic. I'm afraid it will run hot again in the middle of the interstate. Also this morning I went to the store and when I got back in my car it would not even turn over. The security light came on and after many tries to turn it over, the car finally started. Not sure what is causing this. However you guys have been great and I know things may not be caught the first go around, especially on an older model vehicle.