UPDATE: My coolant was flushed about two weeks ago. This week is the first really warm (70's F) weather we've had. My not-very-good-mechanic brother-in-law says that the air was not bled from the coolant system and that's causing the car to overheat. Does this sound like a possible answer? Would this effect the fans?
Yesterday, my temperature warning light flashed on while driving. I stopped, checked coolant levels, and then was able to drive home (20-30 min) with no further incident.
This morning, after about 15 min of driving, the temp light flashed again, and I only made it home by pulling off the road and turning the car off every mile or two when the light started flashing. It would be fine at first, then within 1/2 mile or so the light would flash again.
I did notice today (during my many unplanned stops) that I didn't ever hear the radiator/engine fan kick on like it normally would when I turn the car off.
Could it be the fans that are the problem? If so, what would cause them to malfunction?