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Summary of this article:
- Neglect of the cooling system is the #1 cause of expensive
engine repairs.
- The cooling system consists of the Radiator, Water Pump, Thermostat, and
Coolant/Water Mixture.
- Coolant is a mixture of 50% of the RIGHT coolant/anti-freeze and 50%
water.
- Improper balance of water and coolant causes corrosion and serious
problems that you cannot see.
- Coolant breaks down in its protective qualities with time and mileage.
- The cooling system must be serviced periodically to make sure the
cooling system is doing as it is designed.
- The service intervals depend on your car, mileage and the manufacturer's
recommendations.
- Many auto repair companies only do a drain and refill as their coolant
system service.
- Drain and fill leaves up to 60% of the old ineffective fluid inside.
- To properly service the cooling system you must use equipment to
completely flush out the old fluids and replace it with all new fluids.
- Bill's Quality Auto Care always recommends the proper cooling system
flush and refill method.
- Bill's is a strong advocate of saving your money and giving you many
added benefits through proper maintenance on your cars.
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From our experience, the number one cause of major
engine failure is cooling system problems due to neglect of the cooling
system. We see some very expensive engine repairs due to this neglect –
several $1,000’s is very common. Obviously, this is a very important topic for
our customers. Remember, our goal is to help you prevent major breakdowns and
to save you money. We do this by encouraging affordable maintenance when your
car needs it.
First, lets understand how the cooling system works
The cooling system consists of a radiator, a water pump, a
thermostat and hoses. A mixture of water and coolant/anti-freeze flows through
the engine, water pump, thermostat and radiator. The goal is to dissipate and
remove the heat off the engine. The fluids constantly flow through the system
through the radiator. The radiator uses air from the car’s motion and radiator
fan to aid in the cooling of the fluids.
This system sends lower temperature fluid back into the
engine constantly. This keeps your engine from overheating. Overheating
causes major engine damage and is very expensive.
Understanding water and coolant
Water is a great coolant for the engine. It even does a
better job than the coolant/anti-freeze itself. In fact if you wanted to cool
an engine, water alone is the best method. However, there is one problem with
only water: it corrodes the internal parts of the engine. Corrosion damages
many important components in the cooling system that can restrict cooling. So, we add coolant to the
water to help protect the cooling system from corrosion. The coolant is also an
anti-freeze formula that helps to prevent the water from freezing in your
engine.
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Severe corrosion can occur when additives
that protect the cooling system have been
depleted. |
Rust, scale and sludge can plug
cooling system fins, preventing proper
circulation of coolant. |
To strike the right balance of water and coolant we mix 50%
water and coolant. The coolant is a blend of chemicals that inhibits rust,
while the water is for cooling. In the old days, we only had one type of
coolant. Each technician or auto repair shop had their favorite brand, but
there was really only one type. Today, we stock six different types of
coolants. This is because some car manufacturers require a specific type.
Therefore, you would need mix the right coolant and water, not just any
coolant.
Cooling systems are becoming more complex with later model
cars. We are becoming chemists to a degree. We have to ensure that right pH,
percentage of coolant additives to water ratios, and measure the presence of
stray voltage (electrolysis) in the fluids. Certainly, times were more simple and easier to
troubleshoot and maintain. Today, though, we must be aware of a wide variety of
technologies related to cooling.
Suggested cooling system service intervals
We recommend and perform a visual inspection of the cooling
system at each oil change service. This visual inspection consists of looking
at the fluid levels and looking at the consistency of the fluid, then topping
the fluid levels if needed. That is all that is needed between cooling system
services.
Thorough Cooling System Inspections Intervals
Periodically, it is important to do more than just a fluid
top off. A more thorough inspection is needed. We do this periodically
depending on how long and how many miles you driven since your last cooling
system service. We also factor in what your car manufacturer recommends, and
the current condition of the cooling system. Additionally, we encourage more
frequent thorough inspections after your car has reached 50,000 miles.
Cooling System Service Intervals
Because of variables in driving conditions, the type of
coolant, and your car manufacturer’s recommendations, the cooling system will
need to be serviced anywhere from every two years to 100,000 miles. At our
shop, we take the care to monitor this for you as you have other services
performed (oil changes, etc.). We will notify you when you are due for this
service. That is why it is important to have your periodic maintenance done
with our shop – so we can monitor all of your maintenance issues.
What is involved in a cooling system service?
 While some
shops and quick oil change companies only drain and fill the cooling system
fluids, we do the job right. The reason is that up to 60% of the
contaminated fluid remains with just drain and fill.
The cooling system service at Bill's Quality Auto
Care involves a few steps. We start
by adding a chemical that breaks up the contaminants in the system and running
the car until it heats up. We run the car until it heats up and the thermostat opens up
so
fluid is running through the entire system. The job of that special additive is
rid the fluid of the contaminants and aid in the next step, the flush.
We add a specified amount of fresh coolant into a
specialized piece of coolant transfusion equipment and hook it up to the car. The
amount we add is determined by the condition of the current fluid and the
manufacturer’s recommendations. The transfusion machine forces the old fluid out
completely and adds new fresh, protective fluids.
After the flush equipment is disconnected, we add a
conditioner. The job of the conditioner is to fortify the coolant and reduce
the electrolysis. Electrolysis is an enemy of coolant, it is basically stray
voltage in the system. It damages the internal parts of the cooling system if
it remains unattended.
Bill’s Quality Auto Care’s Role in Maintenance
We are fanatics about preventative maintenance. You might
think that an auto repair shop would rather have those big ticket repairs rather
than much smaller maintenance orders. Many shops do prefer repairs over
maintenance. We don’t.
It makes a lot more sense for us to encourage proper
maintenance because it saves you money. That endears our customers to our
shop. Preventative maintenance also can be scheduled, and that’s good for you
and our shop. Preventative maintenance done regularly also has other benefits:
- It increases the resale value of your car.
- It improves your chances of selling your car later – people love
cars that have been well maintained and we’ll provide you with all the receipts
to help.
- It extends the life of your car. This can save you tremendously
because you can choose freely when you want a new car, rather than being forced
because of an expensive repair.
- It helps keep your car safer. Many maintenance items revolve
around keeping your car safe, brakes are not the only thing. Steering, ABS,
Axles, Alignments and more are also helpful in keeping your car safe. Not to
mention, any breakdown can be unsafe when stranded on the side of a road.
- It helps keep your car running smoother and like new. A properly
maintained car feels better.
- It gives you peace of mind – the most valuable benefit to you of
all. You don’t have to think twice commuting to work, or taking a long trip, or
a spontaneous, long Sunday drive. You feel confident in knowing your car is
properly maintained and that gives you peace of mind.
In the end, preventative maintenance is beneficial to both
of us. Besides, we will always get those big ticket repairs because some people
simply delay on maintenance until it’s too late. Hopefully, though, not you.
If you would like to understand the role of preventative
maintenance further, ask Bill or one of the service advisors. All of us are
very experienced and well trained. And, we won’t make you feel foolish for not
understanding cars either. We want you to understand because when you do, you
will take better care of them.
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