If the engine temperature gauge is creeping up into the red zone, most drivers understand that this is a bad thing. After all, should the motor be allowed to overheat too much then damage would almost certainly ensue and, in the worst-case scenario, some of the internal components could actually melt. If you've got one eye on this gauge as you're driving down the road, then you should take action as soon as possible. Where should you start?
How It Works
As you probably know, your engine relies on a constant flow of coolant, channelled through an internal network of pipes and chambers, to remove the naturally generated heat. To achieve this, the coolant is sent through the front-mounted radiator and this will help to remove much of the heat as the air flows over a network of internal tubes and fins.
Radiator Make-up
The radiator is a very efficient component, but it will need a certain amount of attention as time goes by. Otherwise, it may become clogged both internally and externally and this will affect its efficiency going forward.
If you take a close look at the radiator, you will see that it is composed of a large number of horizontal tubes, separated by hundreds of individual fins. The air is supposed to flow in between the fins, over the tubes and carry away the generated heat as it does so.
Vulnerability
Each one of those fins is very delicate and can easily be damaged by road debris. When damage builds up in this way it will affect the efficiency of the entire radiator and will need to be repaired as soon as possible. Bugs can also get caught in the fins -- especially during the summer season when they are prevalent. They will need to be cleaned away from the surface, otherwise they will impede the free passage of air.
Correct Coolant
It is also very important to use the right type of coolant and never fill up the radiator with tap water. This type of water has a large number of contaminants, and these will build up over time to cause an internal blockage. When this happens, the water will not be able to flow as freely as it should, and this can also contribute to a rising temperature.
External Clean
It may be possible to clean the outside of the radiator using a low-pressure hose, as long as you're careful to avoid causing any damage to those fins. However, if you can see any corrosion or other signs of damage then you may need to get the entire radiator replaced.
Radiator Flush
It is also a good idea to take the vehicle in for a radiator flush. The mechanic will use the right equipment to clean out the interior of the radiator before they replace the coolant with new product.
Taking Action
If your temperature gauge is creeping higher than ever, don't delay. Take the vehicle in for a service as soon as possible. You can reach out to a car radiator repair shop for more information.
