Engine overheating? Pull over and whatever you do, do not switch the engine off. Get buckets of water and pour it all over the radiator, not the engine. As soon as the water temperature needle goes down, put a thick, wet towel on the radiator cap and loosen it to let pressure out. Keep pouring water on it as you remove the cap and fill the radiator with water. The next step is to check if the radiator fan is working. If it isn't, there's your problem right there. Radiator fan failure occurs for both electric and belt-driven type fans. Either its drivebelt has snapped, or the electric wiring harness is broken. It could also be that the fan's electric motor has burned out. Whatever the reason for its failure is, you should replace the fan right away. The radiator fan draws air towards the radiator, helping cool the engine coolant in the radiator's tubes. If coolant temperature isn't lowered enough, the coolant isn't effective at taking heat away from engine parts. If you still haven't figured out yet, here's a simpler explanation. Without a working radiator fan, your car's engine will overheat in less than ten minutes. In hot climates, it'll take even less than five minutes. So visit Car Stuff today for a replacement fan for your car's radiator.