The engine could possibly seize.
Valves will clatter if the engine is overheating.Valves will clatter if the engine is overheating.
Your car is overheating when idle because there may be a lack of oil or water in the engine. It can also be a problem with the engine itself. If your car is overheating, simply contact a wrecker or a road assistance company. The police are also available to assist you.
Your overheating warning light may glow a semi red color after you go 4 to 6 miles and your engine isn't overheating for many reasons. The main reason may be that there is a wiring problem, or the sensor may be going bad.
AnswerThis is a symptom of an overheating engine. See "Related Questions" below for an excellent trouble-shooting guide to overheating problem.
The engine is overheating. The check engine light is not on because you have no problem with the emissions system which this light monitors.
Yes.
You can warp the head and crack the block if you keep it running for too long while its overheating, that's only two things. Fix the problem before you blow the engine.
Thermostat may not be opening
Black duct tape
If the Toyota Celica VVTI is not blowing hot air through the heater, but the engine is overheating, there could be a problem with the radiator being plugged up. Sediment sometimes builds up in the radiator that can clog thermostats. Another problem might be the thermostat sticking or the water pump is leaking.
overheating will proably warp parts of your engine making the problem much worse than it would have been
Check the thermostat first. I had an intermittent overheating problem on my 02 for almost a year, changed the thermostat and it never happened again. If that doesn't work, secondly I would check the water pump.