I pull over and pop the hood. Coolant is gradually dumping into the overflow. Ouch. The main fan is running full on, however the secondary (condenser) fan is trying to run, but can't. It spins up, but then turns off almost immediately. And the four-relay cluster is clicking like crazy. So obviously the ECU is trying to control it, but something is conflicting... Obviously it's a damn hot day and running one fan is not enough. Maybe the secondary coolant sensor is sending bad signal and turning the fan off. I'll be getting a new one. It doesn't seem like there's actually a problem with the fan motor or anything of the sort. I'll look into it some more.
As I checked under the hood and the car idled, the temperature gauge went back down to almost middle, but wouldn't quite get there. The main fan would turn off when it was slightly above middle, and then turn on again as it would start climbing. I shut the car off, let it chill, and then checked the coolant level - it was full, so at least that's good.
But now I'm worried that driving hot may have warped my heads or damaged the head gasket... I checked the oil, and it looked clean and free of coolant. Gonna do a compression test tonight.
I'm not really sure how hot the motor has to get in order for damage to occur...
![Confused :?](./images/smilies/icon_confused.gif)