Anyway, the sohc in it now overheats. I spent a good amount of time searching, and reading up... here's what has been done.
The previous owner took the head off, had it machined, and replaced the head gasket. I just got it, so until today, I haven't had a chance to check it out. I stopped by Autozone and picked up a new thermostat (The previous guy said he replaced that as well) and gasket.
The garage was locked, so I didn't have tools. I figured I try some of the things I read on here before replacing the thermostat until the garage was opened up.
To took off the radiator cap, and fired it up with the heat blasting. I couldn't really see the fluid moving around, other than from what appeard to be the vibration of the engine running. While doing this, I did notice the fluid overflowing. The bottom hose got warm pretty fast, but the top on stayed fairly cool.
Feeling the hose, I noticed that there wasn't a wire (the one that kicks on the fan I presume). Then I noticed another wire spliced, and wired up to a switch next to the dimmer wheel and mirror controls.
There IS a CEL.
![Image](http://mimx3.com/wiki/images/f/fd/Thermostat.jpg)
So, after about 5 minutes, I checked out the temp gauge and flipped the switch to turn on the fan.
![Image](http://mimx3.com/wiki/images/2/29/Overheat.jpg)
I didn't want to let it get any hotter at that point, so I shut it off and let the fan run to cool it back down.
So from what my n00b a--- can tell, my first guess is that the coolant isn't flowing. I don't see any leaks, oil or coolant. The oil is very clean, as it the coolant.
What should my next step be? Replace the thermostat and hook the wiring up correctly?