I replaced my timing belt (hope to never do that again) and I didn't have any problems there. I also replaced my radiator because the plastic part on the top of the factory one cracked. I now have an entirely aluminum radiator in there.
Took the car for a drive and after about 2 miles it overheated. So, I blasted the heat inside the cabin, coasted and then came to a stop. It took a while to get back to the house doing the same procedures of stop and go all the way back. Note that NO HEAT was coming out of the inside vents.
I checked all my connections from the radiator to the fill valve to the thermostat and even the over flow. There weren't any leaks and the strange thing was that the radiator and the hoses weren't that hot.
Could this be a bad thermostat or does it have something to do with the timing belt? BTW, I lined up the belt with the cogs perfectly and checked the alignment of the cams to the correct alignment. I also manually rotated the engine via the main pulley and I had no stops and everything was smooth.
Any help or suggestions would be greatly appreciated!