To keep your vehicle running during excessive heat, do regular maintenance on your vehicle. Take preventative precautions.
If you are in traffic and idling and your engine starts to overheat turn the air conditioner off. The engine cooling fans keep the air flowing through the engine and the fans continue to run even when you are idling. What can also help is to turn on your heater. The best advice is to shut the vehicle down and call a tow truck. Learn more about radiator hoses, coolant system and water pump.