The cooling system keeps our engine from overheating. Its job is to move heat away from the engine. Let’s talk about the various components of the system and how they work to accomplish this.

The radiator is the part most everyone associates with the cooling system. Coolant flows through the radiator which has fine cooling fins that draw the heat out of the coolant and dissipate it into the air. To make sure there’s enough airflow over the radiator, a fan pulls air over the cooling fins even when the car is idling.

In some vehicles, the fan is powered by the serpentine belt. On others, an electric motor runs the fan. Electric fans turn on and off as needed. You may have heard the fan kick on shortly after you turn your car off. The sensor has determined that the engine needs a little help cooling down to a safe temperature.

A hose connects the radiator to the water pump. The water pump pushes the water into the engine block. Now the engine block and cylinder heads have passages for the coolant to pass through without getting into the oil or the combustion chamber. These passages are referred to as the “water jacket”.

While the coolant is passing through the water jacket, it absorbs heat from the engine on its way to the radiator for cooling. Between the engine and the radiator is a gatekeeper called the thermostat. The thermostat’s job is to regulate the temperature of the engine just like your home thermostat regulates the temperature of your house. It gets your engine up to the correct operating temperature and then keeps it from overheating.

When your first start the engine, it’s very cold and needs to warm up. So the thermostat blocks the flow of coolant to the radiator. As the engine warms up, the thermostat starts to let coolant flow through the system.

The final component I want to talk about is the overflow reservoir. This bottle is designed to hold some of the coolant. It’ll have a mark that indicates whether or not you have enough coolant. This is where you should add coolant if you just need to top it off.

Caution: never open the reservoir or the radiator cap when the car’s hot. The cooling system is pressurized and opening them while it’s hot can cause hot coolant and steam to escape resulting in serious burns.

Cooling system failure is the most common mechanical failure in vehicles. Your service center can do a periodic inspection of the components for leaks, loose connections and weakening hoses.

Your manufacturer has also specified a cooling system service interval. With a cooling system service, the old coolant is replaced with correct clean fluid that contains the additives required to prevent corrosion. The additives are depleted over time and you need fresh fluid for adequate protection. Your radiator pressure cap should be replaced at this service as well.

North Americans love their cars. And nothing goes with cars better than a road trip. Freedom from daily schedules, new sights and the open road – it’s great! But there’s nothing like car trouble to bring the fun to a grinding halt.

Now you can’t always avoid problems, but you can take steps to reduce the probability of getting sidelined on your trip.

Let’s look at some of the maintenance related problems you might encounter on a road trip and what you might do to avoid them.

It all starts with a thorough trip inspection by your service professionals. Let’s talk about some of the items on the trip inspection checklist.

The most common vehicle component to fail is the tires. Of course, you can’t always avoid a road hazard that leads to a flat, but you may be able to head off some maintenance connected tire problems.

A good tire inspection will start with looking over the condition of the tire itself. Are there signs of uneven tire wear? Are the tires properly inflated? Is the tread worn to the point that the tire should be replaced? The answers to these questions may lead to a recommendation to balance or rotate your tires. It may also be time to have an alignment service.

Your brakes should be inspected for function as well as to determine how much life is left in your brake pads. You’ll also want to know if it’s time to service your brake fluid. Over time water and contaminants make their way into your brake fluid and the system needs to be flushed, cleaned and filled with fresh fluid.

While looking under your car, the technician should also inspect your suspension system for worn or damaged parts. If you need new shocks or struts, you’ll really notice the difference on your trip once you have them replaced.

Now the second most common vehicle failure is the cooling system. It may be time for a coolant exchange or flush. These services remove old fluid that has become corrosive and replaces it with fresh, clean fluid that restores the effectiveness of your cooling system.

The cooling system inspection will reveal leaks and weakened hoses. Replacing worn parts, like the radiator cap or water pump may be indicated. Even though cooling system failure is fairly common, it’s easy and relatively inexpensive to prevent with proper maintenance.

Another thing people often overlook is their transmission service. This is very important before a road trip because transmission problems tend to take some time and money to get fixed. Not the way you want to spend your vacation.

Your technician will inspect your belts to see if they should be replaced. A failed belt is at best an inconvenience. He’ll also give your exhaust system the once over to make sure there aren’t any dangerous leaks that could harm you and your passengers.

Of course, there are the usual things as well. An oil change, engine air filter, fuel system cleaning, a tune up. If you need any of these things, get them done – the improved fuel economy will be appreciated on your road trip.

If your heater or air conditioning isn’t working as well as you’d like, let your service consultant know.

Some important items that are often overlooked are power steering service, differential service and timing belt replacement. If these things don’t ring a bell, have your service consultant check to see if they’re due.

Now while you’re out seeing the sights, you’ll want to make sure you can see the sights. Replace your windshield wipers if they aren’t working well. And don’t forget your headlamps. They gradually lose their brightness and you don’t even realize it. Many people replace their lamps once or twice a year.

All the items mentioned are part of any good vehicle maintenance plan. These are things that you want to take care of anyway, but they all come into focus as you plan for your trip. They’ll always save you money in the long run and may prevent inconvenient delays on your trip. After all, you wouldn’t want to miss the world’s largest ball of string, would you?

A hot engine like the Lambo’s V10 requires a great cooling system.  See how to take care of yours.

Are your cooling system components in need of attention?  Check this out for some help.

You don’t want to overheat in this weather.  Check out this information about keeping your cooling system components working well.

Let’s talk about deciphering the service menu board. Service centers have a board that lists the routine services they provide. But some people don’t know what these services really are unless they ask. Let’s go down a typical list, in alphabetical order, starting with air conditioning service.

First remember that all of these services are recommended by vehicle manufacturers. They set how often or at how many miles the service should be done.

Air conditioning service involves purging the old refrigerant and capturing it for proper disposal. Then fresh refrigerant is installed. The fresh refrigerant will lubricate the system and will also help it cool better.

Alignment. They make sure all four wheels are lined up and track with each other. This reduces tire and suspension wear and improves safety and handling.

Battery service. Inspect the battery for corrosion, leaks or damage. Test the battery’s ability to hold a charge. If the battery’s still strong, clean it up. If not, replace it.

Brakes. This could be two things. A brake inspection to see if the brakes are working well mechanically and to see if the pads are still safe. If not, replace the pads and make any repairs that might be in order.

The other thing is to evacuate the brake fluid, clean out the system and replace it with fresh fluid. This is important, but often over looked.

Cabin air filter. The cabin air filter is the filter that cleans the air that comes into the passenger compartment. It works like the filter on your furnace at home. It gets dirty and needs to be changed.

Cooling system. This is the cooling system for your engine. Replace the old coolant with fresh to protect your radiator and other cooling system components from corrosion.

Differential service. Every vehicle has at least one differential. They don’t require service very often, so people don’t think of them much. The differential transfers power from the drive train to your wheels. Drain the old fluid and add fresh lubricant.

Engine air filter. This filters the air that’s burned in the engine. It gets dirty and needs to be replaced.

Fuel filter. This filter cleans the fuel before it gets to the engine. Like the other filters, it gets clogged and needs to be replaced.

Know what else is ugly?  A blown engine due to overheating.  Check out the short video on your cooling system.

You know, we get a lot of people asking about how to prepare their car for a trip. That’s a big deal. You could be driving through mountains and deserts in some pretty lonely areas so you may be anxious to know that the car is up to the task and won’t leave you stranded.

You really do need to plan ahead for a major road trip – there are a lot of things to get ready. Where should you start? You could start with the tires. Look them over for tread wear and check to see that they are properly inflated. Take a quick test drive to see if you can feel any vibrations: are the wheels are in balance? Is the car tracking straight? Is the alignment ok?

The next thing is a full service oil change to make sure all of your fluids are topped off and you have fresh oil for the trip. And if your car has over 75,000 miles, you may consider putting in the high-mileage formulation to clean harmful sludge deposits in the engine. You may also need a new PCV valve and an engine air filter.

How about your transmission and brakes? Have you had your transmission and brakes inspected in the last six months?

How are your wiper blades? There’s nothing like not being able to get rid of the bug juice on a long road trip.

Check your owners’ manual for any other recommended service and have your service center do the multi-point inspection they do so well before you head out.

Consider also having the coolant system serviced – you want to stay within the manufacturer’s recommendations. If you’re towing a trailer you’ll want to be keep in mind that you’ll be going a long way under severe conditions.

A lot of folks overlook severe conditions like towing, or summer heat, or driving on dirt roads. Plan ahead for your next road trip – we want you to get there and back.

Is it time for a cooling system service?  Watch this short video on preventing the most common reason for mechanical failure.

Be prepared for the summer heat with a cooling system service.