How to Stop an Overheating Engine From Leaving You Stranded
As your temperature gauge rises higher than normal, going closer to the red zone, you are given the first indicator that your engine is overheating. The second indication is the warning light your vehicle has to tell you the car is running hot. This light is typically found on the dashboard, and you may see steam rising from the bonnet. When any of these signs appear you need to stop driving the vehicle. To continue driving is asking for brutal and costly injury to the engine.
At any time that you see a warning light that your engine is running hot you should pull of the road and turn the car off. You should not continue to a service station or mechanics garage. The injury to your car will be a lot worse, especially to the cylinder head. The cylinder head can warp or crack under increased temperatures, and is very costly to swap out.
As soon as you are off the street you need to turn your hazard lights on for the other drivers around you. If there is no fire coming from under the bonnet you can open it in order to get more air to the engine, helping it cool off. You should never touch the engine as it can burn you.
Be prepared that it may take quite some time for the engine to cool down sufficiently so be ready for a long wait. If your vehicle has overheated when it is dark, switch on your sidelight bulbs to improve the visibility of your vehicle to other road users and consider turning on your headlight bulbs to help you see what your are doing.
After the engine has cooled you will need to check the coolant. The coolant can be found in the radiator and the fluid reservoir. If there is a lower level of coolant in the container you can add water to it in an emergency. Adding water to the coolant will dilute it, which means it can freeze in the winter. This is because antifreeze properties exist in the coolant. You will need a professional mechanic to flush the system and repair the diluted fluid before winter.
The cap to the coolant filler can be very hot even after the car has cooled down. Steam tends to be trapped inside which will rise, burning your hand. It is best to wait until the outside of the radiator is cool to the touch before opening the cap. You can also use a rag to remove the cap.
At arms length steadily fill up the engine coolant with water, to prevent being splashed with hot coolant, and stop periodically to check the reservoir level. Once the coolant level is back between the maximum and minimum levels marked on the reservoir, and the engine temperature gauge is back within its normal range it will be safe to drive off again.
It is safe to drive if the coolant was the issue; however there could be another issue which has caused the engine to overheat. You will want to avoid long trips until you can get the car into the garage. If the engine gets hot shortly after you begin to drive again, pull over and call for roadside recovery to tow your vehicle to a garage.
If you are planning on a long motoring trip as well as checking under the bonnet, you should make sure your all your Car Bulbs are working correctly before setting off. It is also important to carry spare Headlight Bulbs with you so that if a bulb blows you can still carry on motoring safely.
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