Hello my 1993 GS 300 is running hot, I've put coolant in but that doesn't work, the overflow bubbles hot, I've tried turning on the heat and that doesn't work. now the engine light is on it wasn't on at first. All fans are working (there's only 3 that I can see). After driving for about 2-3 miles on the freeway, the temperature rises all the way pass the red. Could it be the radiator vent not opening or the thermostat? I was told that the engine, motor, transmission, and alternator are fine. My apologies, I don't have any pictures at this time.
